Field of the Invention: [0002] The present invention generally relates to a food preparation system.

More specifically, an embodiment of the present invention is a food processing machine including a base unit, a container with a built-in drive unit, and a mixing attachment.

Background of the invention: [0003] Many food processors include a base housing that has a motor shaft extending upward and outward from the base housing. A food processing container, such as, for example, a bowl, is formed with an opening in the bottom and is designed to set on top of, and interlock with, the base housing. The motor shaft extends into the bowl through the bottom opening of the container when the container is interlocked with the base. The motor shaft supports a food processing implement, such as, for example, a blade cutter or a disk. After a lid is placed over the top of the bowl, the motor is selectively operated to rotate the shaft and the implement within the container, whereby food in the bowl is, for example, shredded, sliced, grated, and/or mixed.

[0004] The container, the base housing, and the lid may include interlocking mechanisms which cooperate in a complementary sense to insure that

the container is firmly attached to the base housing, and the lid is secluded to the container. Typically, the container is set on the base housing and is rotated to facilitate the latching of the container to the base housing.

[0005] The motor shaft in most food processors may only rotate in a single direction. Accordingly, the mixing attachment and its blades or cutting tools are designed to only operate in one direction and the food within the container is repeatedly subjected to the same cutting/mixing action.

[0006] It would be advantageous to have a food processor that includes a reversible motor. Similarly, it would be advantageous to have mixing attachments that perform one function when rotated in a first direction and perform a different, second function when rotated in an opposite direction.

Summary of the Invention: [0007] An aspect of one embodiment of the present invention is to provide a food processor that has a base housing including a bi-directional motor and motor controls, a container which interlocks with the base housing including a two-speed, bi-directional drive shaft protruding into the container, and a mixing attachment that engages the drive shaft to process the food.

[0008] According to an embodiment of the present invention, the base housing has a speed control dial and a pulse button. The speed control dial can be rotated in a clockwise or a counterclockwise position to drive the mixing attachment in a forward or reverse direction. The speed control dial can vary the mobile speed, for example, between indices 1 through 5 (slow to fast) to control the motor speed. The pulse button temporarily accelerates the motor to the highest speed when depressed.

[0009] According to another embodiment of the present invention, a container includes a drive shaft that protrudes into the container and has two independently rotating sleeves, a primary and secondary sleeve. The primary and secondary sleeve have a concentric vertical axis and rotate simultaneously at two

separate speeds. Preferably, the primary sleeve rotates approximately eight to twelve times faster than the secondary sleeve. [0010] Yet another aspect of the present invention is to provide mixing attachments that perform one function in a first direction, and a second, different function when operating in an opposite direction. For example, a chopping attachment performs one function, such as, a mixing function, when rotating in a clockwise direction, and performs a second, different function when rotating in a counterclockwise direction.

Preferably, the two functions can be accomplished without having to flip the attachment upside down or modifying the attachment in any form.

[0011] One embodiment of a mixing attachment has a support column adapted to engage the drive shaft protruding into the container, a spiral deflection element along the outer surface of the support column, and a domed-shaped cap having dimples attached to the top of the support column. This embodiment may also include a blade located between the pitch of the spiral deflection element.

When this mixing attachment rotates in a clockwise direction, food is pulled in towards the base of the support column, travels upward through the spiral deflection element, and contacts the domed-shaped cap which disperses the food outward. When this attachment rotates in a counterclockwise direction, food is pulled in towards the top portion of the support column, travels down the support column through the spiral deflection element, and is pushed outward from the base of the support column.

[0012] Another embodiment of a mixing attachment has includes a cylindrical column with a spiral protrusion along the outer surface of the column and a paddle located at the base of the column. When this mixing attachment rotates in a clockwise direction, the spiral protrusion will create a downward screwing action upon the food such that the food is forced onto the paddle. When this attachment rotates in a counterclockwise direction, the spiral protrusion creates a lifting and aerating action upon the food being processed.

[0013] Another aspect of the present invention includes a lid that prevents liquid from exiting the container and provides additional lateral support for the mixing attachment while operating. An embodiment of the lid has a coupling mechanism that engages the mixing attachment when the lid is placed on top of the container. Accordingly, the mixing attachment is secured on both ends. Another embodiment of the lid includes a gasket that presses against the wall of the container to form a liquid tight seal to prevent liquid from traveling up the wall of the container and exiting the container.

[0014] Still another aspect of the present invention allows only certain attachments to operate with specific containers and/or lids. As some embodiments of the container allow the food processor to operate without a lid. Thus, a user could access the mixing attachment while the food processor is operating. Only non-cutting mixing attachments may be used in such an environment. A cutting mixing attachment cannot engage the drive shaft associated with this container because the shape of the drive shaft and the cavity of mixing attachment are not compatible.

[0015] Yet another aspect of the present invention allows a user to assist in the mixing of ingredients while the food processor is operating. By way of example only, the food processor can operate without a lid when certain non- cutting mixing attachments are operating. Without a lid on the container, a user may test the food mixture while the food processor is operating or off.

Brief Description of the Drawings : [0016] Figures 1A-1E ; Figure 1A is aperspectiveviewofanembodiment of the present invention; Figure 1B is a cut-away view of the container shown in Figure 1 A ; Figure 1 C is a partial cut-away view of the drive unit located within the container shown in Figure 1A ; Figure 1D is a perspective view of another

embodiment of the present invention; Figure 1E is a perspective view of still another embodiment of the present invention; [0017] Figure 2 is a perspective view of an embodiment of a whisk mixing attachment for use with the present invention; [0018] Figure 3 is a partial cut away view of the container shown in Figure 1D with an embodiment of an impeller mixing attachment; [0019] Figure 4 is a side view of an embodiment of a spiral paddle mixing attachment for use with the present invention; [0020] Figure 5 is a perspective view of an embodiment of a multi-blade mixing attachment for use with the present invention; [0021] Figure 6 is a perspective view of an embodiment of a quadruple paddle mixing attachment for use with the present invention; [0022] Figures 7A-7B; Fig. 7A is a perspective view of yet another embodiment of a lid, according to the present invention; Fig. 7B is a bottom view of an embodiment of the gasket attached to the lid shown in Fig. 1A ; [0023] Figures 8A-8B; Fig. 8A is a perspective view of still another embodiment of a lid; Fig. 8B is a top perspective view of the embodiment shown in Fig. 8A ; [0024] Figure 9 is a perspective view of a further embodiment of the present invention; and [0025] Figures 10A-lOB ; Fig. 10A is a front perspective view of an embodiment of the base; Fig. 10B is a rear perspective view of the base shown in Fig. 10A.

Detailed Description of the Invention: [0026] The food processor 100 as shown in Figs. 1A, 1D, and 1E, is a multi-purpose food processing system. By way of example only, the food

processor 100 may function as a blender, a food processor, a mini-chopper, or a dough/batter mixer. As shown in Fig. 1A, the main components of the food processor 100 include a base 101 and a container 102.

[0027] The base 101 is the power source for the food processor 100.

Preferably, the base 101 has a power chord that plugs into a typical electrical wall socket, which provides 110VAC. A motor (not shown) is housed within the base 101. The shaft of the motor is coupled to a motor clutch 107 (see Figs. 10A-lOB) located on the top surface of the base 101. Thus, the motor clutch 107 rotates at the same speed as the motor. In a preferred embodiment, and as shown in Figs.

10A and 10B, the motor clutch 107 has multiple recesses 107a. Each recess 107a is shaped substantially similar to the motor clutch interface 111 of the drive unit 104. A control dial 103 located on the base 101 activates the power to the motor and controls the motor speed. Controlling the motor speed, in effect, controls the speed of the motor clutch 107.

[0028] In general, a user can control the speed of the mixing attachment (described hereinafter) that is coupled with the motor clutch 107. For example, the control dial 103 can be rotated in a clockwise or forward direction, or rotated in a reverse counterclockwise direction. The base 101 has predetermined indices 106 mixed at several locations near the outer edge of the control dial 103 so that a user has a frame of reference as to the speed the mixing attachment is rotating. By way of example only, the base 101 has five indices 106 marked as positions 1-5 (slow to fast) on both the forward and reverse directional sides.

[0029] In a preferred embodiment, the motor housed within the base 101 is a variable speed motor, and the motor shaft may rotate in either a clockwise or counterclockwise direction. In operation, the control dial 103 controls a Rheostat which regulates the current to the motor. A user may set the control dial 103 at any position between the lowest and highest setting, allowing the motor shaft to

incrementally increase or decrease its RAM. The motor housed inside the base 101 is preferably a DC motor, and the shaft may rotate up to 4,000 RPM in a forward or clockwise direction, and up to 3,7000 RPM in a reverse or counterclockwise direction.

[0030] A user should take care when switching the motor shaft between the forward and reverse directions. For example, when switching the control dial 103 from position 2 in the forward speed to position 2 in the reverse direction, the control dial 103 should be rotated counterclockwise from position 2 in the forward position to the"off"position for a few seconds before continuing to turn the control dial 103 to position 2 in the reverse position. By leaving the control dial 103 at the upright"off"position for a few seconds, the motor has a chance to come to rest before it begins to rotate in the opposite direction. Allowing the motor to come to a complete stop before beginning to rotate in an opposite direction is preferable and will increase the longevity of the motor.

[0031] The base 101 also includes a pulse button 105. The pulse button 105 temporarily accelerates the motor to the highest speed when depressed. While the food processor 100 is running, a user may press the pulse button 105 to accelerate the mixing attachment to the highest speed. The pulse button 105 may be held down for as long as the highest speed is needed. Upon releasing the pulse <BR> <BR> button 105, the mixing attachment will return to its prior operating speed (e. g. , the speed set by the control dial 103).

[0032] The pulse button 105 may also create short pulse movements of the mixing attachment. For example, the control dial 103 maybe turned either forward or reverse to the first indices 106 immediately to the right or left of the"off" position. These indices 106 are in addition to the rotating speeds 1-5. Thus, when the control dial 103 is set to either of these indices, the mixing attachment will not begin to rotate. Instead, a temporary boost of power in the forward or reverse

direction occurs when the pulse button 105 is depressed. The direction of rotation depends on which direction the control dial 103 is set. If the control dial 103 is set to the right of the"off'position, the mixing attachment will rotate in a clockwise or forward direction when the pulse button 105 is depressed. If the control dial 103 is set to the left of the"off'position, the mixing attachment will rotate in a counterclockwise or reverse direction when the pulse button 105 is depressed.

Upon releasing the pulse button 105, the motor will shut off and the attachment will come to a rest. [0033] There are several different containers 102 that function with the base 101. Preferably, each container 102 is manufactured from a polycarbonate material. It is within the scope and spirit of the present invention for the container 102 to be manufactured from other food safe materials that are impact resistant and dishwasher safe. Each container 102 is adapted to sit upon, and interlock with, the base housing 101, as shown in Figures 1A, ID, and 1E. In general, a food processor container is set onto a base and rotated in a single direction to interlock with the base. The base essentially functions as a"backstop," preventing the container from rotating in an opposite direction from that the motor is rotating. The present invention includes a two directional motor. Thus, a typical slide and lock interface between the base 101 and the container 102 will not prevent the container 102 from spinning in both directions. Thus, each container 102 in the present invention locks with the base 101 to prevent the container from rotating in either direction. Basically, the container 102 is set on the base 101 and rotated in a clockwise direction until the container 102"snaps"into a locked position. Such a locking mechanism is well known in the art and does not require further disclosure. The base 101 has a release lever 150 (see Fig. 10B) located on the back of the base 101. To release the container from the base 101, press down the release lever 150 while twisting the container 102 counterclockwise. Each

container 102 has a built in, non removable, dishwasher safe drive unit (described hereinafter).

[0034] Referring to Figure 1A, the jar or container 102 has an elongated body with an open top that includes a handle 108, a pouring spout 110, and a gear box 130 (described in more detail below). As shown in Fig. 1A, a lid 116 is placed on the top of the container 102. For safety reasons, the device 100 will not operate simply because the jar 102 is locked onto the base 101. The device 100 will not operate until the lid 116 is placed onto the jar 102 and the lid 116 activates the safety latch located in the handle 108. This safety procedure ensures that the device 100 will not operate without the lid 116 secured onto the j ar 102. Operating the device 100 without the lid 116 covering the j ar would allow a user to place their hand into the jar 102 and access a rotating mixing attachment and possibly injure themselves. Such a safety feature is well known in the art and does not require a further description.

[0035] As previously mentioned above, thejar 102 interlocks with the base 101 by seating the jar 102 on the base 101 and rotating the container 102 into a "locked"position. In general, the jar container 102 is taller and narrower than a typical food processor, and is wider than a typical blender. In a preferred embodiment, the handle 108 is substantially the same height as the body of the container 102. A large handle 108 allows a user to grip the handle 108 at several areas to best balance the food or liquid within the container 102. It is within the scope and spirit of the invention for the container to have a smaller handle or no handle at all.

[0036] Ingredients often must be added to the mixture at different times in the mixing process. As previously mentioned, the device 100 will not operate without the lid 116 secured to the container 102. It would be inconvenient to have to remove the lid 116 every time an ingredient must be added. Preferably, a user

may add an ingredient to the mixture while the food processor 100 is operating so that the device 100 does not have to be repeatedly stopped and started. The measuring cap 118 may be removed from the lid 116 to add ingredients into the j ar 102 while the lid 116 is in place and the food processor 100 is operating. As shown in Fig. 1B, the measuring cap 118 normally covers an opening 119 in the lid 116. To remove the measuring cap 118 from the lid 116, turn the cap 118 counterclockwise and lift it out. This creates a hole or opening 119 for adding ingredients into the container 102 while the unit 100 is operating.

[0037] The opening 119 is large enough to fit ingredients through (solid and liquid), yet small enough to prevent a user from placing their hand through.

The measuring cup 118 preferably has graduations along the side (e. g. 1/4 cup, 1/2 <BR> <BR> cup. loz., 2 oz. ) so that a user can fill the ingredient into the measuring cup 118, pour the ingredient through the opening 119 and then place the measuring cup 118 back into the lid 116. The device 100 may operate without the measuring cup 118 placed in the lid 116.

[0038] Figure 1B is a more detailed illustration of several elements of the container 102 and the lid 116. As shown in Fig. 1B, the lid 116 is secured to the container 102. As previously mentioned, the measuring cap 118 may be removed so that ingredients may be placed into the opening 119. Recessed in the top in the top of the lid 116 is a sloped pouring surface or channel 121 to gravitationally feed the liquid or food towards the opening. [0039] The lid 116, when secured to the container 102, prevents food and/or liquid from traveling up the wall and exiting the container 102. A gasket 117 is attached to the bottom of the lid 116 by snapping into a channel around the bottom edge of the lid 116 (see Fig. 7 for a more detailed view). The device 100 will work with the lid 116 even if the gasket 117 is not attached to the lid 116. The gasket 117 and the lid 116 may rotate independently of each other. In operation, the lid 116 with the gasket 117 attached

is placed onto the container 102. The gasket 117 fits into the opening of the container 102. The diameter of the gasket 117 and the opening of the jar 102 are substantially similar. Thus, the edge of the gasket 117 presses firmly against the interior wall of the container 102. This snug fit forms a water tight seal between the gasket 117 and the container 102. The lid 116 may then be rotated in a clockwise direction until the lid 116 activates the safety mechanism in the handle 108. The gasket 117 preferably does not rotate with the lid 116 and remains in place.

[0040] The gasket 117 has an opening 127 to allow the food or liquid powered through the opening 119 in the lid 116 to enter the container 102. As shown in Fig. 1B, the opening 119 in the lid 116 is misaligned with the opening 127 of the gasket 117. The gasket 117 has a collar 129 that is sloped downward towards the opening 127. Thus, food or liquid poured into the opening 119 of the lid 116 will gravitationally travel towards the opening 127. The opening 127 in the gasket 117 and the opening 119 in the lid 116 are misaligned because the opening 127 is preferably in the center of the gasket 117 to allow the mixing attachment to extend through the opening 127 and engage the coupling mechanism 128 (described later). The opening 119 cannot be in the center of the lid 116 because of the coupling mechanism 128.

[0041] The opening 127 in the gasket 117 must be large enough so that the mixing attachment can fit through and there is enough room between the mixing attachment and the edge of the opening 127 for food or liquid to pass through.

Similarly, the distance between the sloped collar 129 and the bottom of the lid 116 must be great enough to allow food or liquid poured into the opening 119 of the lid 116 to travel down the collar 129 towards the opening 127. Thus, some larger foods may have to be cut into smaller portions so that they don't get caught

between the collar 129 and the lid 116, or between the mixing attachment and the edge of the opening 127.

[0042] The lid 116 also includes a coupling mechanism 128. The coupling mechanisms 128 extends into the container 102 and towards the drive unit 104 when the lid 116 is secured to the container 102. As shown in Fig. 1B, and in a preferred embodiment, the coupling mechanism 128 is a female member. In this embodiment, the lid 116 will operate with the whisk 300, the adjustable blade 500, and the quadruple paddle 600 mixing attachments (to be described later). It is within the scope and spirit of the invention for the coupling mechanism 128 to be a male member. The male or female coupling mechanism 128 aligns with the tab or cavity located on the top of the mixing attachment. In general, the coupling mechanism 128 engages the mixing attachment and provides additional lateral support.

[0043] The coupling mechanism 128 is rotatably connected to a shaft 130 which extends outward from the bottom of the lid 116. The shaft 130 is connected to the lid 116 by a spring mechanism 134. The spring 134, restrained by a set of washers 132, may expand or compress within a limited range of motion. The spring 134 is predisposed to expand and thus push the coupling mechanism 128 away from the bottom surface of the lid 116. A bushing 136 covers a portion of the shaft 130 and provides a guide for the shaft 130. The bushing 136 further functions as a seal around the shaft 130 to ensure that food or liquid does not enter into the lid 116.

[0044] Figure 1C provides more detail of the gear box 120 and drive unit 104 that is incorporated into the container 102. By way of example only, the gear box 120 is a self-contained, liquid tight assembly that is ultrasonically welded to the bottom of the container 102. The gear box 120 and the drive unit 104 may be incorporated into, or attached to, the container 102 by other means of

manufacturing. In general, the drive unit 104 is a reversible, dual speed drive mechanism adapted to rotate a mixing attachment.

[0045] The drive unit 104 utilizes a sun-planet gear assembly 120 to simultaneously produce two different speeds of rotation. It is understood that the drive unit 104 may be manufactured from materials including metals and plastics safe for interaction with food and be within the spirit and scope of the invention.

By way of example only, such material can include aluminum, stainless steel and ABS plastic. The drive unit 104 includes a center shaft 112 which has a motor clutch interface 111 at one end. When the container 102 is set on top of the base 101, the motor clutch interface 111 engages or fits within the motor clutch 107 extending from the base 101. In effect, the center shaft 112 is directly coupled with the motor clutch 107 and rotates at the operating speed of the motor. In a preferred embodiment, the motor clutch interface 111 includes several fingers that extend outward from the center shaft 112, as shown in Fig. 1C. This configuration requires the motor clutch 107 to have a"flower"pattern that will accept all of the fingers of the motor clutch interface 111 simultaneously. It is within the scope and spirit of the invention to include other forms of coupling mechanisms between the motor clutch interface 111 and the motor clutch 107.

[0046] The drive unit 104 includes a primary sleeve 113 and a secondary sleeve 115 that the mixing attachment may engage. The primary sleeve 113 is secured to and covers a top portion of the center shaft 112. Thus, a mixing attachment engaging the primary sleeve 113 will rotate at the speed selected by the control dial 103. The secondary sleeve 115 rotates independently of the primary sleeve 113, and preferably rotates at a slower speed than the primary sleeve 113.

The secondary sleeve 115 may rotate independently of the primary sleeve 113 because the secondary sleeve 115 A primary sleeve 113 is included onto the center shaft 112. Thus, a mixing attachment engaging the primary sleeve 113 will rotate

at the speed selected by the user. Is secured to an exterior shaft 114 that rotates independently of the center shaft 112. The exterior shaft 114 is driven by a planetary gear system 120. The planetary gear system 120 consists of a rotating sun gear 122 and three rotating planet gears 124. The sun gear 122 is a sprocket wheel and is secured or molded to the center shaft 112. Thus, the sun gear 122 rotates at the same speed as the primary sleeve 113. The three planet gears 124 are also sprocket wheels and rotate independently of each other. Each planet gear 124 is driven by the sun gear 122 and is constantly in contact with the sun gear 122.

The axis of rotation for the sun gear 122 is the center shaft 112, while the axis of rotation of each planet gear 124 is a spindle 123. Each spindle 123 is mounted to a spindle plate 125 that maintains the spindles 123 120'apart from each other. The spindle plate 125 is mechanically connected to the exterior shaft 114.

[0047] The effective pitch radius of each spindle 123 is greater than the pitch radius of the sun gear 122. Thus, the exterior shaft 114 rotates at a slower speed than the center shaft 112. In a preferred embodiment, the center shaft 112 rotates eight to twelve times faster than the exterior shaft 114. Basically, for every eight revolutions of the sun gear 122, a planet gear will make one revolution. It is within the scope of the present invention for the center shaft 112 and the exterior shaft 114 to rotate at different ratios and for the exterior shaft 114 to rotate faster that the center shaft 112. As previously mentioned, the secondary sleeve 115 is secured or molded to the exterior shaft 114. Accordingly, the primary sleeve 113 will rotate eight to twelve times faster that the secondary sleeve 115.

[0048] As further shown in Figure 1C, the primary sleeve 113 and secondary sleeve 115 are concentric along a common vertical axis, as shown by centerline A-A. As previously mentioned, the primary sleeve 113 and secondary sleeve 115 rotate independently of each other. Preferably, the primary sleeve 113 and secondary sleeve 115 have different cross-sectional geometries. For example,

and in a preferred embodiment, the primary sleeve 113 may have a square cross section, while the secondary sleeve 115 may have a hexagonal cross section. Each mixing attachment will preferably have a cavity or bore located in the bottom of the shaft that matches the shape of the primary sleeve 113 or the secondary sleeve 115. Thus, if a mixing attachment only engages the secondary sleeve 115, the shaft of the mixing attachment will also cover, but not engage the primary sleeve 113.

[0049] This"mix and match"system predetermines the range of speed that a mixing attachment may operate within. For example, a mixing attachment that only engages the primary sleeve 113 may rotate at any of the speeds 1-5 selected by turning the control dial 103. Similarly, a mixing attachment that only engages the secondary sleeve 115 may rotate at, for example, 1/8 of the speeds 1-5 selected by turning the control dial 103. Thus, the shaft of a mixing attachment intended for slower speed operations (e. g. , kneading dough) will only be able to engage the secondary sleeve 115. Similarly, the shaft of a mixing attachment designed to operate at high speeds (e. g. , whisk) may only engage the primary sleeve 113.

Again, this"mix and match"system ensures that each mixing attachment is only operated within its effective range of speed. For example, a whisk mixing attachment does not effectively whip ingredients if it operates at a slow speed (e. g., mixing egg whites into a merangue requires a high speed). It is within the scope of the present invention for the cross section of either the primary sleeve 113 or secondary sleeve 115 to comprise other shapes as, but not limited to, elliptical and octagonal cross sections.

[0050] The combination of the planetary gear system 120 and the two independently rotating sleeves 113,115 enables the motor in the base housing 101 to operate at a single speed (e. g. , speeds 1-5) and simultaneously produce two different rotation speeds to drive a mixing attachment.

[0051] The drive unit 104 is also bi-directional, operating in both forward

or clockwise direction, and a reverse or counterclockwise direction. A bi- directional motor and drive unit 104 is an improvement over a single-directional drive unit. For example, rotating a mixing attachment in the reverse direction may remove ingredients clogged in the bottom of the container 102 without having to manually remove them by hand or with a tool (e. g. , spoon or spatula).

Additionally, the reverse feature may draw ingredients down towards the blades or paddles of a mixing attachment, stirring ingredients for more consistent chopping and/or adding air for lighter, frothier mixtures. By way of example only, a suitable drive motor that may provide such a forward and reverse rotation is sold by Dayton (e. g., model No. 27851).

[0052] Fig. 1D illustrates another container that is compatible with the bowl 102'. The shape of the bowl 102'is different than the jar 102. The bowl 102' is designed to operate with an impeller 300 (see Fig. 3) that minimizes or eliminates splashing of the food or liquid being mixed within the bowl 102'. Thus, <BR> <BR> the bowl 102'is shorter than the j ar 102, and has a wider base so that the bowl 102' may store more food and liquid that the jar 102. The bowl 102 has a handle 108', a collar 120, and a pouring spout 110'. The handle 108'is similar to the handle 108 of the jar 102. Also, the pouring spout 110'makes it convenient to pour the mixed ingredients directly out of the bowl 102'. As shown in Fig. 1D, the lid 116'is secured to the bowl 102'. For easy-access food preparation, the bowl 102'may operate without the lid 116'placed on top if the bowl 102', allowing the user to smell and see the recipe throughout the mixing process. Without the lid 116' covering the bowl 102', the user may taste the recipe while the processor 100'is operating, or preferably while the device 100 is turned off. When the ingredients are mixed, the lid 116'may be snapped back onto the bowl 102', allowing the user to place the bowl 102'directly into the refrigerator for storage. Even though the collar 120 is designed to prevent the impeller 300 (described hereinafter) from

grabbing an implement (e. g. , spoon or spatula) placed into the bowl 102'while the device 100 is operating, a user is encouraged to turn the device 100 off before placing any instrument into the bowl 102'. The bowl 102'interlocks with the base 101 in a similar manner as the previously disclosed j ar 102.

[0053] The collar 120 is a cylindrical tube located in the center of the bowl 102'. The collar 120 is attached to the bowl 102'and extends upward towards the lid 116', as shown in Fig. 1D. The collar 120 has an open top. The collar 120 has two slots 314 (See Fig. 3) located substantially opposite each other. As will be described later, the slots 314 must be large enough to allow food or liquid within the bowl to pass through unobstructed.

[0054] The drive protruding into the bowl 102'is not the same drive unit 104 illustrated in Fig. 1C. Instead, the drive unit that rotates the impeller 300 is a single shaft that directly couples to the motor clutch 107. Thus, the impeller 300 will rotate at the speed selected by the control dial 103.

[0055] Fig. 1E illustrates yet another container that is compatible with the base 101. This configuration is a mini-chopper jar 102". The jar 102"includes a cylindrical body with a handle 108"attached to one side of the jar 102". The jar 102"has a drive unit (not shown) integrated into the base of the jar 102"that directly couples with the motor clutch 107 when the jar 102"is interlocked with the base 101. Similar to the bowl 102, the drive shaft protrudes into the jar 102" through the center of the jar's floor. Since the drive unit of jar 102"is directly coupled to the motor clutch 107, the drive unit rotates at the speed selected by the control dial 103. Similar to the previous embodiments, the jar 102"interlocks with the base 101 and will not operate until the lid 116"is secured to the jar 102".

[0056] The mini-chopper 102"operates with a mixing attachment that has two curved blades substantially opposite each other. Each blade is preferably at a different height to simultaneously chop food at different levels. The mini-chopper

102"is designed to chop small quantities of, for example, fresh herbs, garlic, onions, and other garnishes.

[0057] There are several mixing attachments that may operate with the food processor 100. For example, the food processor 100 may operate with attachments such as a whisk 200, a medium viscosity batter attachment 300, a dough kneading attachment 400, a floating blade attachment 500 and a quadruple paddle 600. Each attachment is designed to operate with the container 102 as shown in Figures la and 1 e, or the container 102'as shown in Figure lb. Each attachment may operate in a clockwise or counterclockwise direction.

[0058] Figure 2 illustrates an embodiment of a whisk mixing attachment 200. The whisk 200 is designed to operate with the container or jar 102, as shown in Fig. 1A. The whisk 200 includes a center column 202. The center column 202 has a base 204, a middle section 206, and a top section 208. The center column 202 has a tapered shape, narrowing from the base 204 (widest diameter) to the top section 208 (narrowest diameter). It is within the scope and spirit of the present invention for the center column 202 to taper in the opposite direction (e. g. , the base 204 is narrower that the top section 208). The tapered shape of the center column 202, as shown in Fig. 2, is preferable. The length of the base 204, the middle section 206, and the top section 208 may vary. However, the total height H of the whisk 200 is preferably similar to the distance between the container floor 126 and the coupling mechanism 128 when the lid 116 is placed on top of the container 102. If the whisk 200 is too tall, the lid 116 will not be able to interlock with the container 102. Basically, the height H of the whisk 200 must be within the range that the spring 134 may compress. Similarly, if the whisk 200 is too short the coupling mechanism 128 will not be able to engage the tab 214 located on the top of the whisk 200 when the lid 116 is placed onto and interlocked with the container or jar 102.

[0059] The base 204 has a cavity 205 to engage the drive unit 104 of the container or jar 102. The whisk 200 is designed for high speed operations such as whipping egg whites or cream. Thus, the cavity 205 will only engage the primary sleeve 113. When the whisk 200 is placed over the drive unit 104, the cavity 205 Will not be able to engage the tab 214 lo does cover both the primary sleeve 113 and the secondary sleeve 115. However, the portion of the cavity 205 that fits over the secondary sleeve 115 has a diameter greater than the secondary sleeve 115.

Thus, the secondary sleeve 115 may rotate freely within the cavity 205, and only the primary sleeve 113 drives the whisk 200. The portion of the cavity 205 that covers the primary sleeve 113 has a similar cross sectional geometry and diameter as the primary sleeve 113. The whisk 200 is pushed down onto the drive unit 104 until the base 204 is proximate to the container floor 126.

[0060] As previously mentioned, and in a preferred embodiment, the top section 208 includes a tab 214 extending outward from the top surface. The tab 214 will engage the coupling mechanism 128 when the lid 116 is placed on top of the container 102. The female coupling mechanism 128 has a cavity substantially similar in shape and size to the tab 214. When the lid 116 is placed on the container 102, the tab 214 enters the coupling mechanism 128, compressing the spring 132 and placing a positive force from the coupling mechanism 128 onto the whisk 200. In effect, the base 204 and the top section 208 of the whisk 200 are secured. Securing both ends of the whisk 200 provides a sturdier mixing structure when the whisk 200 is rotating.

[0061] The whisk 200, as shown in Fig. 2, has three wire-shaped elements 210a, 210b, 210c (generally referred to as"wire 210") connected with the center column 202 to mix or whip the ingredients within the container 102. Preferably, each wire-shaped element 210 is constructed from a single piece of material. By way of example only, each wire 210 passes through the center section 206 of the

center column 202, and each end 216 of the wire 210 is connected to the base 204.

In this embodiment, the portions of the wire-shaped element 210 that extend outward, perpendicular from center column 202 are substantially linear. The wires 210 may also extend outward from the center column 202 in a non-perpendicular manner. The side portions 212 of each wire-shaped element 210 are preferably aligned with the Z-axis of the center column 202 and have a non-linear configuration. In a preferred embodiment, and as shown in Fig. 2, the side portions 212 of each wire are curvilinear. It is within the scope and spirit of the present invention for the side portions 212 to form non-linear configuration such as, but not limited to, a triangular and rectangular path. The curvilinear pattern of the sides 212 preferably travel alternatively away from, and towards, the center shaft 202 to maximize the surface area that each wire-shaped element 210 covers as it contacts the food.

[0062] The wire 210a is the outermost wire, the wire 210b is the middle wire, and the wire 210c is the innermost wire. Preferably, the wires 210a, 210b, and 210c do not contact each other and maintain a minimum distance apart form each other. As the whisk 200 rotates in either the clockwise or counterclockwise direction, the side portion 212 of each wire 210 creates a turbulence in the food or liquid. A typical whisk mixing attachment has wires that are parallel to each other.

To maximize the turbulence, each side portion 212 preferably has a different curvilinear pattern. The different patterns of the sides 212 will more effectively aerate the liquid since each different pattern creates a different flow pattern in the food or liquid.

[0063] Figure 3 illustrates an impeller 300 for homogenizing viscous mixtures such as, but not limited to, light batters, smooth sauces and dressings and cake mixes. The impeller 300 is specifically designed to operate with the bowl 102'. The impeller 300 includes a domed-shaped cap 302, a support column 306,

and a spiral deflection element 308. In a preferred embodiment, the impeller 300 also includes a blade 310 located within the pitch of the spiral deflection element 308.

[0064] The domed-shaped cap 302, as shown in Fig. 3, has a convex outer surface 303 and a concave inner surface 305. The inner surface 305 has dimples 304 located along the edge, around the entire diameter of the surface 305. In a preferred embodiment, the dimples 304 are"U"-shaped. It is within the scope of the invention for the dimples 304 to have other shapes such as, but not limited to, a"V"-shape or rectangular shape. When food or liquid is placed into the container 102 and subsequently rises to a level equal to or above the dimples 304, the non- linear configuration of the dimples 304 will aerate the food or liquid when the impeller 300 rotates. The dimples 304 also assist to centrifuge food away from the support column 306 (described in more detail below).

[0065] The support column 306 includes a cavity 307 to engage the drive shaft 316 of the bowl 102'. The drive shaft 316 includes a drive nut 318 that engages the center shaft 306, and a motor clutch interface 320 that directly couples with the motor clutch 107 of the base 101. The impeller 300 is pressed onto the drive shaft 316 such that the drive nut 318 engages the female component 309 of the drive shaft 306. The direct coupling between the drive unit 318 and the drive shaft 306 means that the impeller 300 rotates at the speed selected by the control dial 103. As shown in Fig. 3, the spiral deflection element 308 and the blade 310 are contained within the collar 121. The diameter of the spiral deflection element 308 is smaller than the diameter of the collar 121, allowing the spiral deflection element 308 to rotate freely within the collar 121. The dome-shaped cap 302 remains above the collar 120, leaving a gap between the collar 121 and the inner surface 305 of the cap 302.

[0066] The collar 121 includes two slots 314 located where the collar 121 and bowl 102'attach. Each slot 314 is preferably 1/2"high and 1"wide. It is within the scope and spirit of the invention for the slots 314 to have other configuration.

Each slot 314 allows the food or liquid to enter into, or travel out of, the collar 212.

For example, when the impeller 300 rotates in a clockwise direction, the mixture in the bowl 102'is sucked into the collar 121 through the slots 314. The rotating spiral deflection element 308 functions as an archimedean screw and propels the mixture up the support column 306 and through the collar 121 until the mixture reaches the inner surface 305 of the cap 302. The rotating cap 302 will deflect the mixture outward towards the wall of the bowl 102'. In effect, the mixture is repeatedly circulated from the bottom of the bowl 102'to the top of the mixture.

Since the spiral deflection element 308 may push the mixture upward, the diameter of the cap 302 is preferably substantially equal to, or greater than, the diameter of the collar 121. If the diameter of the collar 121 is greater than the diameter of the cap 302, some of the material propelled upward by the spiral deflection element 308 will not contact the inner surface of the cap 302, and the mixture will not be redirected outward, reducing the mixing properties of the impeller 300. Further, the upward traveling mixture would be projected past the cap 302 and out of the bowl 102'if the lid 116'is not covering the bowl 102'.

[0067] When the impeller 300 rotates in a counter-clockwise direction, the spiral deflection element 308 will pull material in towards the center column 306, downward through the spiral deflection element 308, and out through the slots 314.

Thus, the mixing process is reversed from that described above when the impeller 300 rotates in a clockwise direction.

[0068] The blade 310 breaks up solid particles as the mixture passes through the spiral deflection element 308. The blade 310 is located between the pitch of the spiral deflection element 308 and does not extend out from the support

column 306 further that the spiral deflection element 308. Similarly, the blade 310 preferably may not be accessed directly through the slots 314. Thus, the blade 310 is positioned at a height which always remains above the slot 314. The blade 310 may be manufactured from a material such as, but not limited to, plastic, stainless steel or aluminum.

[0069] The collar 121 allows an individual to use a tool (e. g. , a spatula or spoon) to scrape around the edge of the bowl 102'or taste the mixture during mixing, without fear of catching the tool or the user's hand within the protruding spiral deflection element 308 or blades 310. Preferably, a user will not place any <BR> <BR> utensils or mixing devices (e. g. , spatula), or their hand, into the bowl 102'until after the food processor 100 is turned off.

[0070] A spiral paddle mixing attachment 400 is illustrated in Figure 4.

The spiral paddle 400 has a center column 402 and a paddle 406. The spiral paddle 400 has a cavity located within the base of the center column 402. The spiral paddle 400 is designed to operate with the jar 102 (see Fig. 1A). As the spiral paddle 400 is primarily used for heavy dough operations, the cavity of the spiral paddle 400 will only engage the secondary sleeve 115 of the drive unit 104. When the spiral paddle attachment 400 is pressed onto the drive unit 104, the portion of the center column 402 that fits the primary sleeve 113 has a larger diameter that the primary sleeve 113. Thus, the primary sleeve 113 does not engage the center column 402 and rotates freely. Only the secondary sleeve 115 engages and drives the paddle 400. The paddle 406 is proximate to the floor 126 of the container 102 when the paddle attachment 400 is fully pressed onto the drive unit 104. In a preferred embodiment, the spiral paddle 400 has a bore 408 in the top of the center column 402. The bore 408 accepts the male coupling mechanism 128 of the dough lid 116 when the lid 116 is placed onto the container 102. Thus, both ends of the spiral paddle 400 are secured.

[0071] The center column 402 has a spiral protrusion 404 along the outer surface. The protrusion 404 travels along the center column 402 at an angle O.

The angle O of the protrusion 404 transforms the spiral paddle 400 into an archimedean screw. In a preferred embodiment, the protrusion 404 travels around the center column 402 at a 30'angle (0 is 30°). It is within the scope of the present invention for the spiral protrusion 404 to travel along the center column 402 at a different angle O (e. g., 40°'50°, etc. ). The protrusion 404 also extends out from the center column 402 by a width W. The additional width W creates a shelf to either support the mixture as it is forced upward, or pull on the mixture as it travels downward.

[0072] The spiral paddle 400 may rotate in either a clockwise or counterclockwise direction to mix the ingredients within the container 102. For example, when the spiral paddle 400 rotates in a clockwise direction, the spiral protrusion 404 creates a downward screwing action upon the food so that the food is forced onto the paddle 406. The paddle 406 constantly moves the mixture located at the bottom of the container 102 around. Similarly, when the spiral paddle attachment 400 rotates in a counterclockwise direction, the spiral protrusion 404 creates a lifting and aerating action upon the food being processed. The paddle 406 will lift the food from the bottom of the container 102 into the spiral protrusion 404. The spiral protrusion 404 then lifts the food up to the top of the spiral center column 402. Once the food reaches the top of the center column 402, it will then drop to the side of the center column 402 and onto the top of the mixture. This process ensures that the dry ingredients become mixed into a solid element and the solid elements move in a rolling motion to knead the mixture.

[0073] The spiral paddle accessory 400 is often used to make dough for bread, biscuits and the like. When mixing and kneading dough, a user will often test the texture with a spatula to avoid over-mixing. It is preferred that the food

processor 100 is turned off before placing a spatula into the container 102.

However, the single paddle attachment 400 does not have any sharp edges that may cut or damage the spatula if a user places the spatula into the container 102 while the food processor 100 is operating.

[0074] A multi-level blade mixing attachment 500 is illustrated in Figure 5. The multi-level blade attachment 500 is intended to operate with the container 102. The attachment 500 includes a center shaft 502, an adjustable blade assembly 504, a stationary paddle 507, and a floating blade assembly 508. The multiple blade assemblies 504 and 508 and paddle 507 manipulate the food simultaneously at different levels. The center shaft 502 has a cavity within the base 513 (not shown) that allows the attachment 500 to fit over the drive unit 104. The cavity has an upper portion that is shaped substantially similar to and has approximately the same diameter as the primary sleeve 113. The diameter of the lower portion of the cavity is greater than the diameter of the secondary sleeve 115. Thus, the attachment 500 only engages the primary sleeve 113 of the drive unit 104. When the attachment 500 is pressed onto the primary sleeve 113, the lower portion of the cavity does not contract the secondary sleeve 115, and thus it rotates freely within the center shaft 502. The stationary paddle 507 is proximate to the floor 126 (see Figure 1B) of the jar 102 when the attachment 500 is pressed onto the drive unit 104. In a preferred embodiment, the center shaft 502 also includes a tab 509 extending from the top. The shape of the tab 509 is similar to the cross sectional geometry of the female coupling mechanism 128. When the lid 116 is placed on top of the container 102, the tab 509 will fit into the female coupling mechanism 128. Thus, both ends of the attachment 500 are secured during operation of the food processor 100.

[0075] The height of the adjustable blade assembly 504 along the center shaft 502 may be adjusted along Z-axis of the center shaft 502. Thus, the

adjustable blade assembly 504 may operate at various preset heights. The center shaft 502 has several sets of notches 510 to hold the adjustable blade assembly 504 in place. As shown in Fig. 5, each set of notches 510 are located at a different height along the center shaft 502. The adjustable blade assembly 504 includes a hub 506 that may engage the notches 510 and hold the assembly 504 in place, and a blade 511 connected to the hub 506. Both the hub 506 and the blade 510 have a hole extending through to allow the center shaft 502 to pass through. The hub 506 has two tabs 512 substantially opposite each other that align with and engage a pair of notches 510. By way of example only, each tab 512 is a"U"-shaped protrusion that is predisposed to extend into each notch 510. When a tab 512 engages a notch 510, the adjustable blade 504 is held in place. The tabs 512 may be manufactured from aluminum and formed into a flexible"U"-shaped sheet, with the convex side engaging each notch 510. When the adjustable blade 504 is moved between the notches 510, the tab 512 is pushed out of the notch 510 by the larger diameter center column 502. When the tab 510 reaches the next notch 510, the tab 510 will extend into and engage the notch 510 by springing back to its original shape. In a preferred embodiment, the blade 511 has a serrated front edge 511 a and a saw-toothed back edge 511b. This configuration causes the blade 511 to slice or chop food in a forward direction, and break up food in a reverse direction.

[0076] The stationary paddle 507 is attached to the base 513. The stationary paddle 507 extends outward, from the base 513. The stationary paddle 507 primarily functions as a sweeping arm to keep contents off the bottom 126 of the container 102. Thus, as shown in Fig. 5, the paddle 507 is preferably a thin piece of material. By way of example only, the stationary paddle 507 is manufactured from a material such as, but not limited to, plastic. It is within the scope of the present invention for the stationary paddle 507 to be manufactured from other material such as, but not limited to, aluminum or stainless steel.

[0077] The floating blade assembly 508 is always located between the adjustable blade assembly 504 and the stationary paddle 507. The floating blade assembly 508 is free to slide in the Z-direction of the center shaft 502, guided by channels 514. The floating blade assembly 508 has two tabs 515 that extend into and engage the channels 514. The tabs 515 prohibit the floating blade assembly 508 from rotating independently of the center shaft 502, and maintains the position of the blade 516 and the fin 518 relative to the center column 502. The floating blade assembly 508 slides freely up and down the center shaft 502. Thus, the floating blade 508 rests upon the base 513 when the attachment 500 is not in operation. The floating blade 508 includes a metal blade 516 and a fin 518 connected to each other. The fin 518 has a front portion 520 and a back portion 522. The front portion 520 and the back portion 522 are angled downward from their common vertex 521. The angled front and back surfaces 520,521 lift particles into the adjustable blade assembly 504 when the attachment 500 is in operation. Similar to the blade 511 in the adjustable blade assembly 504, the blade 516 has a serrated front end 516a and a saw-toothed back end 516b. The blade 516 performs the same functions as previously mentioned above concerning the blade 511.

[0078] This attachment 500 may perform many functions. By way of example only, the attachment 500 may be used for blending, liquefying, pureeing, chopping, crushing ice and grinding. Some of these functions are performed by the attachment 500 rotating in a clockwise direction, while are performed when the attachment 500 rotates in an anticlockwise direction. To blend, liquefy, and/or puree, ingredients may be placed in the container 102, one-half to two-thirds full.

After placing the lid 116 on the container 102, process the mixture on speed 5, alternating between forward and reverse directions for thirty seconds in each direction until blended or pureed. For chopping, place dry ingredients into the

container 102 not more than one-third full. After placing the lid 116 on the container 102, pulse in the forward direction until chopped. For grinding, break large pieces of the ingredients and place them in the container 102, not more than one-half full. After placing the lid 116 on the container 102, process on speed 5, alternating between forward and reverse for thirty seconds in each direction until ground. For crushing ice, place ice cubes in container 102, no more than one-third full, add two tablespoons cold water and pulse in reverse until ice is broken up.

[0079] A quadruple paddle mixing attachment 600 is illustrated in Figure 6. The attachment 600 is intended to be used with the container or jar 102. The quadruple paddle 600 includes a center shaft 602. The center shaft 602 has a cavity so that the attachment 600 may engage the drive unit 104 of the container 102.

When the quadruple paddle 600 is pressed onto the drive unit 104, the center shaft only engages the secondary sleeve 115. The portion of the cavity 604 that covers the primary sleeve 113 has a larger diameter that the primary sleeve 113. Thus, when the attachment 600 is placed over the drive unit 104, the primary sleeve 113 rotates freely within the cavity 104, and only the secondary sleeve 115 drives the attachment 600. In preferred embodiment, the center shaft 602 includes atab 614 extending from the top. When the lid 116 is placed on the container 102, the female coupling mechanism 128 will engage the tab 614 and the tab 614 will protrude into the coupling mechanism 128. Thus, both ends of the quadruple paddle 600 are secured while the attachment 600 is operating.

[0080] Extending from the center shaft 602 is a first paddle 606, a second paddle 608, a third paddle 610 and a fourth paddle 612. In a preferred embodiment, each paddle is integrally formed with the center column 602. The paddles 606,608, 610,612 preferably extend substantially perpendicular from the center shaft 602 and are at an angle with respect to the centerline A-A. In a preferred embodiment, each paddle is at a different angle with respect to the

centerline A-A. As shown in Fig. 6A, the first paddle 606 and third paddle 610 are located on the same side of the center shaft 602, while the second paddle 608 and fourth paddle 612 are located on an opposite side of the center shaft 602. As shown in Fig. 6B, the paddles may be placed at different angles on the center shaft 602.

[0081] The quadruple paddle 600 is preferably used for mixing heavy batters and doughs. Thus, all four paddles 606,608, 610,612 are intended to turn the dough out and mix the ingredients. By way of example only, to mix the dough with the quadruple paddle 600, first place ingredients in the container 102 and then turn the speed control dial 103 to speed 4 in the forward position until the material is mixed. If the motor starts to strain under the load from the dough, simply increase the speed of the quadruple paddle 600.

[0082] There are three different types of lids 116 that can operate with and cover the container or jar 102. The jar 102 may be covered and operate with a standard lid 116, a heavy dough lid 150, and a slicing lid 175.

[0083] Figs. 8A-8B illustrate a heavy dough lid 800 that operates with the jar or container 102 when this paddle 400 is operating. Again, the unit 100 will not operate until the lid 800 is secured to the container 102. The heavy dough lid 800 has an opening 802 for adding ingredients while the unit 100 is operating. The opening 802 is preferably larger than the opening 119 in the standard lid 116. The opening 802 is preferably large because a larger volume of ingredients are usually added to the mixture when making dough. For example, many cups of flour must be added to the mixture throughout the dough mixing process. The larger opening 802 makes it easier to add these larger volumes of ingredients. The lid 800 also includes a fin 804 that extends upward and above the top rim 806 of the lid 800.

The fin 804 gives the user a surface to grip and rotate to interlock the lid 800 with the container 102 or to unlock and remove the lid 800 from the container. The

dough lid 800 interlocks with and unlocks from the container 102 similar to the standard lid 116.

[0084] The dough lid 800 includes a male coupling mechanism (not shown) similar to the coupling mechanism 128 illustrated in Fig. 1B. When the lid 800 is secured onto the container 102, the male coupling mechanism engages the cavity 408 located in the top of the paddle 400 (see Fig. 4). For safety reasons, the lid 800 has a different coupling mechanism than the standard lid 116 to ensure that no mixing attachment with a sharp blade will operate with the lid 800. The opening 802 in the lid 800 may be large enough for a small hand or mixing tool (e. g., spatula) to pass through. Thus, the unit 100 is designed so that no sharp mixing instrument can be accessed through the opening 802.

[0085] Fig. 9 illustrates a slicing/grating/shredding system. The system includes a lid 900 having a feeding tube 902, a slicing tool 910 and a tool shaft 916. The slicing lid 900 has an elongated feed tube 902 covering the opening.

During operation, a pushing tool 904 us normally placed with the tube 902. The system will operate without the pusher tube 904 inserted into the feed tube 902.

However, similar to the lids previously disclosed, the food processor 100 will not operate until the lid 900 is interlocked with and secured to the jar or container 102.

[0086] The feed tube 902 allows food to enter the container 102 while the food processor 100 is operating. The pushing tool 904 may be removed during operation so that food may be placed into the tube 902. The food will gravitationally feed into the opening and contact the slicing tool 910. After the food is placed into the tube 902, the pushing tool 904 may be placed back into the tube 902 to push the food into the rotating slicing tool 910. The pushing tool 904 preferably has a jagged bottom surface 905 to help grip the food so that the food does not slip while it is being pushed into the slicing tool 910.

[0087] The lid 900 is designed to optimize the cutting efficiency of the slicing tool 910. The lid 900 extends furthest into the jar or container 102 at the rear portion of the opening. This portion functions as a"backstop"that the food is pushed against while the slicing tool 910 is cutting or shredding the food. For example, as the slicing tool 910 cuts into the food, the food will be pushed in the direction that the slicing tool 910 is rotating. Thus, the food will be pushed against the rear portion of the lid 400. When the food comes into contact with the rear portion of the opening, the food cannot travel any further, and the slicing tool 910 continues to travel through the food.

[0088] The slicing tool 910 only operates in a forward or clockwise direction. The slicing tool 910 is supported by a support column 916 so that the cutting surface is proximate to the opening in the lid 900. The bottom end of the support column 916 has a cavity that engages the drive unit 104 of the jar or container 102. The top end of the support column 916 fits through the center hub 911 of the slicing tool 910, and interlocks with the slicing tool 910 so that the support column 916 and the slicing tool 910 rotate together. The hub 911 of the slicing tool 910 may interlock with the support column 916 so that either side of the slicing tool 910 may face the opening. The slicing tool 910 includes a top surface that has an elevated slicing blade 912, and a bottom surface that has elevated shredding blades 914. The food is cut or shred by whichever surface of the slicing tool 910 is facing the opening in the lid 900. Such a slicing tool is well know in the art and does not require a further description. For example, a similar slicing tool is disclosed in U. S. PatentNo. 4,277, 995 (1981) issuedto Suntheimer.

[0089] The foregoing description of the preferred embodiments of the present invention has been provided for the purposes of illustration and description.

It is not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations will be apparent to the

practitioner skilled in the art. Embodiments were chosen and described in order to best describe the principles of the invention and its practical application, thereby enabling others skilled in the art to understand the invention, the various embodiments and with various modifications that are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the following claims and their equivalents.