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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2013/036186
Kind Code:
Whisk with the shape of a rotational body comprising two halves (1, 2) of which one (2) has a basket like whisking means (6) that enclose half of the whisk and is rotatable by a motor arranged inside the housing. In the other end of the rotational body a further whisk means (5), possible identic with the motor driven one is arranged unturnable on the whisk. Between the whisk means (5, 6) there is a distance. The whisk is remote controlled and water sealed and is for whisking quite simply put down in the material that is to be whisked, started and then take care of it self until the whisking is done. At the whisking the whisking means rotate in opposite directions and the whisk swims around in the material that is to be whisked so that everything become whisked. The remote control can also contain a timer for the switching off.

AXELSSON, Stefan (Kungsgatan 22B, Linköping, S-582 18, SE)
FRIBERG, Emelie (Mimergatan 2, Västerås, S-722 09, SE)
GYLLENBREIDER, Magnus (Snickaregatan 5D, Linköping, S-582 26, SE)
Application Number:
Publication Date:
March 14, 2013
Filing Date:
September 03, 2012
Export Citation:
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AXELSSON, Stefan (Kungsgatan 22B, Linköping, S-582 18, SE)
FRIBERG, Emelie (Mimergatan 2, Västerås, S-722 09, SE)
GYLLENBREIDER, Magnus (Snickaregatan 5D, Linköping, S-582 26, SE)
International Classes:
A47J43/07; A47J43/08; B01F9/00; B01F13/00
Foreign References:
Other References:
Attorney, Agent or Firm:
BERGLUND, Erik (Berglunds Patentbyrå AB, Aspebråten, Sturefors, S-590 55, SE)
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1. Whisk, comprising a motor contained in a housing and in driving connection with one or several rotatable whisk means outside the housing, characterized in that the housing is sealed and thereby possible to lower down into the substance that is to be whisked.

2. Whisk according to claim 1 , characterized in that the housing in the end opposite the rotatable whisk means (6) on the outside is provided with an essentially unturnable whisk means (5).

3. Whisk according to claim 1 , characterized in that it has a battery.

4. Whisk according to any of the preceding claims, characterized in that it comprise a wireless remote control.

5. Whisk according to any of the preceding claims, characterized in that it comprise a timer function that may be arranged in a remote control.

6. Whisk according to any of the preceding claims, characterized in that it shuts down at an achieved driving torque of the motor.

7. Whisk according to any of the preceding claims, characterized in that the housing comprise external charging contacts, or a coil for inductive charging.

8. Whisk according to any of the preceding claims, characterized in that one or several of the whisk means (5, 6) are exchangeable.

9. Whisk according to claim 8, characterized in that one or several whisk means (5,

6) are retained by for instance magnets, bayonet fitting or ball fitting (14).

10. Whisk according to any of the preceding claims, characterized in that its center of gravity is centered, uncentered or floating in relation to the contour of the whisk means.

11. Whisk according to any of the preceding claims, characterized in, that the whisk weigh more than the weight of the volume of the material that is to be whisked that is pushed aside so that its sinks down to the bottom of the whisking vessel.

Immersibel whisk comprising motor and casing

Whisks are at the preparation of food used for blending and processing. Electrical whisks saves both manual work and time. However whisks vibrate, which can lead to injuries at too frequent use.

The object of the invention is to eliminate the problem of vibrations at electrically powered whisks.

The object of the invention is solved with an electric whisk, the motor of which is enclosed in a sealed housing so that housing and whisk means can be put down into the substance that is to be whisked. When the whisk is started it will manage on its itself until the desired result has been achieved when you stop it and take it up. You do not need to hold the whisk nor the vessel and no time need to be lost on the whisking. Furthermore whisk and whisk means can be flushed off as one unit or even be washed in a dishwasher. By allowing the whisk with housing and whisk means to be heavier than the weight of the displaced whisked material the whisk will sink down to the bottom of the vessel and will not splash onto the environment. As alternative to allowing the whisk to sink down to the bottom it can be arranged hanging in a float, preferably with an intermediate swivel to allow a free turning. One can also consider the whisk being lighter in one end so that it all the time has the lighter end upwards.

By arranging a whisk means in each end of the housing and running in opposite directions a whisk is obtained that wander around in the whisk vessel so that an efficient blending is achieved in the entire vessel. In an advantageous embodiment the whisk may have a rotation whisk means in one end and on the housing in the other end an unturnably arranged whisk means. When the driven rotatable whisk means is rotated the housing will rotate in the opposite direction and the whisk gets a double whisk area in the substance that is to be whisked. At the same time the speed of the whisk means is in principal halved in relation to the material that is to be whisked which result in a great lowering of the required drive force since the resistance against movement is reduced proportionally much at the lowering at the speed in the substance that is to whisked. In other words an energy efficient whisking is achieved.

Preferably the motor of the whisk is powered by a battery arranged in the housing. The handling of the whisk is in this way made more simple and the wandering of the whisk in the whisk vessel becomes more free than if energy feed would be via an electric cable. The battery may advantageously be possible to charge in situ and the charging contacts may be integrated with the housing or in the case with a whisk means fastened to the housing integrated with the fastening means of this.

In the case of a whisk means that is unturnably fastened to the housing one can consider to allow the half of the housing that is provided with the fixed whisk means containing the battery. This part of the housing can then be connected with the motor containing part of the housing by means as mechanically as well electrically connecting means in a bayonet connection, snap connection or threaded connection with supplementary sealing device or a threaded connection sealing in itself. In this way it is possible to change batteries if needed.

The whisk means are advantageously exchangeable and with the same fastening brackets in booth ends. The fastening may be with magnets and parts with a shape that provide torque transfer. The whisk means may include in the length direction of the housing extending bent bars that at a distance follow the contour of the housing and that can be connected with one or several rings. By giving the bars a slight spiral shape in one or both of the whisk means it is possible to reduce the tendency of the whisk to bounce on the bottom of the mixing vessel at the same time as the wandering tendency of the whisk is changed.

Advantageously the to whisk means are concentric to form and rotation but it is also possible to consider an angle between them so that the whisk achieve a different pattern of movement.

The housing is preferably rotationally symmetric but can also be considered to include recesses and protrusions or a wave like cross section to provide, at whisking, a movement for the substance that is whisked inward and outward relative the housing.

Instead of having two whisk means one can arrange movable whisk means in opposites ends of the housing and with the same rotational direction and intermediate whisk means fastened to the housing. One whisk means or two in opposite directions rotating whisk means could be used.

By arranging the center of gravity essentially in the middle of the whisk this can easily move, a construction were the center of gravity is moved form the center influence the movement pattern. One can also consider to allow the outer contour of whisk means to constitute a ball in order to facilitate the movement of the whisk in the material that is to be whisked, but also other shapes can be used, for instance an elliptic profile may be used to achieve another movement pattern. The movement pattern in the vessel can also be influenced by rotational speed etcetera.

Further advantages and characteristics of the invention are apparent from the patent claims and the following description of en embodiment of the invention in connection with enclosed drawings. At this Fig. 1 shows a whisk in accordance with the invention, Fig. 2 the whisk in a longitudinal section and Fig. 3 the same whisk but with other whisk means.

The embodiment of the invention shown in Fig. 1 and 2 include a housing that comprise a rotational body that is cylindric short and with rounded ends with the same shape. The housing is split in the length direction and is constituted in the drawing of an upper part 1 and a lower part 2. The two parts are threaded together with cooperating and sealing threads 20. In each end of the housing is arranged a central quadratic protruding square profile 3 respectively 4, on which basket like whisk means 5 and 6 respectively are mounted. The whisk means have approximately the same shape contour as the housing but with a short distance between whisk means and housing. The whisk means extends towards each other but stop a distance from each other.

The whisk means consist of wires 15 that extend radially out from a central fastening part 12 then to be bent down and continue axially along the cylindrical middle part of the housing and end fastened in a connecting ring 16. The ring 16 can at least at a number over the inside distributed points be in contact with the housing and secure that the whisk means remain concentric with the whisk and are not wriggled loose from this. The central fastening parts 12 grips around the quadratic square profiles 3 and 4 with correspondingly shaped recesses. The square profiles consist of steel or some other material that can be magnetized while the whisk means includes magnets 14 so that the whisk means can be retained on the square profiles. The two whisk means can be alike or different and the whisk means may comprise obliquely arranged wires as shown in Fig. 3. In order to give the whisk means additional support and more even rolling on the bottom of a whisk vessel an additional the wires connecting ring 17 is arranged roughly were the wires are bent in towards the respective centers of each whisk means.

The upper quadratic square profile is unturnably fastened in the upper part 1 of the housing while the lower square profile 4 is threaded on the outer end of a turnable axle 18. The axle 18 is journalled in a sealing bearing 19 fixed in the lower part 2 of the housing so that the housing is sealed. Inside the housing the rotatable axle 18 is connected to a reduction gearing 19 that is driven by an electric motor 8 with electricity from a battery 9 also arranged in the housing. In the lower part of the housing a control circuit 10 for the motor is arranged and a radio receiver 11 for wireless reception of control signals from an outer, not shown remote control.

Since motor and battery are heavy the whisk will not float but when the whisk is to be used it is put down in the substance that is to be whisked and the motor is started via the remote control. Since the rotational resistance of the whisk means are about the same and increase with the rotational speed in the substance that is to be whisked not only will the rotatable whisk rotate but also the housing with the whisk mounted thereon. The rotational speed of each whisk means relative the substance that is to be whisked will consequently be about half of their relative speed. If one of the whisk means is slowed down due to contact with the bottom or inhomogeneities in the subject that is whisked the speed for the other whisk means will increase relative the subject that is to be whisked. The relative rotational directions of the whisks will cause a secondary rotation for the whisk around its own axle, resulting in the whisk moving around in the vessel in an efficient blending movement so that everything becomes fully blended.

It has turned out that the result of the whisking is good, that is everything becomes whisked efficiently by the whisk that crawls around on the bottom of the vessel, in which the whisking take place. The whisking takes place silently and without splashing. The whisk does not have to be held but take care of itself entirely on its own until it is time to switch it off and pick it up.

In order to charge the battery a central hole is arranged in the fixed square profile 3 and in the hole is arranged an insulated central pin 13 in contact with one pole of the battery while the other battery pole is connected to the square profile 3 itself. Other ways to arrange the charging of the battery are however possible, for instance by the housing halves being of metal and electrically separated by an intermediate insulation part. By means of a diode one can secure that no loss of charge can take place via the surrounding whisked material. It is also possible to consider inductive charging of the battery.

The whisk means are held on the quadratic square profile by these or the whisk means being magnetic. The two whisk means may be alike or unlike and the whisk means may include obliquely arranged wires.

Since the whisk is sealed it may be entirely cleaned in a dishwasher. Several whisks may be used simultaneously in different bowls. No harmful vibration load result for the user. In a comparison with the rated outputs of modern whisks it has turned out that the invented whisk take care of the intended whisking with a low power consumption.

Differing from the above embodiment one can instead consider to arrange the whisk means coaxially with a mutual angle or a bent housing so that the whisk wriggle its way through the material that is to be whisked.

As an alternative to allow the whisk to sink to the bottom it may be arranged hanging in a float or in an arm extending over the whisk vessel, preferably with an intermediate swivel to permit free turning, and adjustable depth. Such a float may also facilitate the picking up of the whisk. For the fastening of the float to the whisk magnetic force from one of the magnets that holds the whisk means may be used. Likewise this magnetic force may be used to hold fast a charging contact and or to hold the whisk to a suspension device that may be integrated with a charging contact.

Since the invented whisk can work by itself the user gain time or may become more efficient. The stress in the work may be reduced. Advantageously the remote control is provided with a timer so that one does not have to remember to turn it off. Alternatively the motor load, for instance via the amperage, may be sensed for switching off when a programmed limit value has been reached. This may for instance be practical for the whisking of egg-white or cream.

Communication with the whisk is controlled via blue tooth or similar communication and all apparatuses for instance mobile telephones that can handle blue tooth can be used to control the whisk. At this one can consider the remote control reporting if the whisking is done or how long time that remains or even keep track of which whisk that has which task if you use several whisks. Likewise it is possible to keep track of the charge status for each whisk.

As is apparent from the above the invention provide many advantages in addition to eliminate the vibrations for the user. It does not splash, has low energy consumption, one does not have to hold the whisk and/or the vessel that you are whisking in, it is also silent and take at use as well storing little room.