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This invention consists of an ergonomic screw device in which paste and also creams can be inserted, allowing even non-expert users to decorate cakes and desserts in a simple and precise way, with minimum effort .

In fact, it is well known that both pastry professionals and homemakers use different types of decoration tools to decorate cakes and pastries, including those in the form of syringes or guns. These decoration tools have differing characteristics that highlight all of the critical issues present during use. More precisely the syringe extruders on the market are formed from a rigid material that allows the thrust of the plunger inside and then the outflow of the paste or cream through the pressure exerted on the handle by the user. Due to their shape these devices have a disadvantage of being fitted with small tanks that are hardly usable for more complex decorations .

Furthermore, these products are difficult to handle and the exertion pressure when using paste must be very strong because of the resistance that it creates when in contact with the plunger. This often produces non-linear decorations . In order to overcome these problems some manufacturers have made some changes to "syringes" that have taken on the shape of a "modified gun". This means that the pressure from the "trigger" allows the plunger to penetrate the tank to extrude the paste contained in it.

Even if on the one hand that technical solution simplifies handing the tool for the user, on the other hand it does not permit a defined and linear decoration of the cake. Considering the uncontrolled leaking of paste in relation to the pressure applied, and also given the shape of the tool, it will have the exact same tank capacity and cleaning problems.

This model overcomes theses critical issues because it has a much more spacious tank than the tools described above, thus allowing a greater quantity of paste to be inserted. It has an ergonomic shape that allows the user to grip it with one hand and keep it stationary with the other. The helix handle screw system allows the extrusion of paste in a consistent and linear fashion with minimum effort. Furthermore, the subject of this invention can be easily disassembled and washed given its preferable shape and material.

This invention consists of five basic components: a tank (a), a screw (b) with a helix handle and threaded plunger, a plunger tip (c) , a changeable die plate (d) and a flanged cap (e) .

This model will now be described for illustrative but not limitative purposes according to its preferred embodiment with particular reference to the figures and to the accompanying drawings, in which:

- Figure 1 shows a three-dimensional exploded view of the individual components of the extruder for cakes and desserts;

- Figure 2 shows a side view of the screw in which the individual components that compose it are evident;

- Figure 3 shows a side view of the extruder assembled in the open position;

Figure 4 shows a section of the extruder assembled in the open position;

- Figure 5 shows a three-dimensional view of the extruder in the assembly sequence.

The invention consists of an ergonomically cylindrical shaped tank (Fig. 1, 4 and 5 - Letter a) that is slightly flared on the outer sides to allow for easier and safer grip. The tank is partially

75 threaded in the upper interior part (Fig. 1 - No .1 ) so as to allow the plunger (Fig. 1, 2, 4 - No. 4) of the screw (Fig. 1, 2, 4 and 5 - Letter b) to screw on the inside. The remaining part is empty (Fig. 4 - No. 2) where the walls are smooth (Fig. 4 - No .11) in order

80 to allow the plunger tip (Fig. 1, 4, and 5 - Letter c) and paste filling to pass through. In the lower part of the tank (Fig. 1, 4 and 5 - Letter a) is an external thread (Fig. 1 and 4 - No. 3) allowing the invention to be closed once it has been filled with

85 paste by threading it onto (Fig. 1 and 4 - No. 10) the flanged cap (Fig. 1, 4, 5 - Letter e) . At the top of the tank (Fig. 1, 4 and 5 - Letter a) is the screw (Fig. 1, 2, 4 and 5 - Letter b) that in turn is formed by a threaded plunger (Fig. 1, 2 and 4 - No. 4), which

90 connects to the upper part of the tank, which is also threaded (Fig. 1 - No. 1) . This is screwed by a helix handle (Fig. 1 and 2 - No. 5), which allows the user to screw and unscrew the same. There is also a lower part, which is placed in an interlocking socket (Fig.

95 1 and 2 - No. 6) allowing the insertion of the plunger tip (Fig. 1, 4, and 5 - Letter c) . The plunger tip (Fig. 1, 4, and 5 - Letter c) , in turn, is formed at the base by a circular plate (Fig. 1 and 4 - No.7) of a diameter equal to that of the lower part of the tank, surmounted by a semicircular wall (Fig. 1

No.8) closed at the top (Fig. 1 - No.9) which allows the plunger tip to connect to the plunger (Fig. 1, 2, 4 No. 4) screw (Fig. 1, 2, 4 and 5 - Letter b) . The coupling of the screw to the plunger tip creates a sealed piston that enables the linear extrusion of the paste out of the extruder without any of it getting back into the tank. Furthermore, the invention consists of an always-circular die plate (Fig. 1 and 5 - Letter d) on which there may be holes/groves of various shapes and sizes, depending on the design to be created. This die plate (Fig. 1 and 5 - Letter d) , located at the closure of the tank (Fig. 1, 4 and 5 - Letter a) , is blocked by a circular flanged cap (Fig. 1, 4 and 5 - Letter e) characterized by internal threads (Fig. 1 and 4 - No. 10) that have the function to enable it to screw onto the bottom of the tank (Fig. 1 and 4 - No. 3) .

The invention as described must be assembled in the following way in order to be able to perform the functions for which it was designed. The components are positioned in greater detail in Figure 5. The user must first insert and completely screw, the screw (b) inside the tank (a) using the helix handle. Then after inserting the plunger tip (c) , turn it to bring it back to the original height in order to fill the tank (a) with the paste and close the invention placing the die plate (d) into the flanged cap, (e) which in turn will be screwed onto the bottom of the tank (a) . Once you close the extruder simply rotate the helix handle so that the paste can be extruded through the holes on the die plate (d) onto the cake or dessert in a consistent and linear manner. To disassemble and store the invention simply follow the steps described in reverse .

The invention may be used with tactile materials and/or any material that is compatible with foods. It is also dishwasher-safe.

This invention has been described for illustrative purposes and in no limitative way is it understood that any variations/modifications can also be made with reference to the materials used.