Patent Application
20080083717
The present invention may be further understood with reference to the following description and the appended drawings, wherein like elements are provided with the same reference numerals. The exemplary embodiments will described with reference to a utensil device which may be heated to scoop, cut, etc. a frozen food item. However, those of skill in the art will understand that, in other exemplary embodiments, the utensil may be utilized on non-food items (e.g., wax, plastics, etc.).
The receiving arrangement 6 for detachably receiving the handle 10 of the utensil 8 may be formed as a channel 24 created in the cover 22. The channel 24 may include a locking arrangement (e.g., friction fit, snap fit, magnetic, etc.) for retaining the handle 10 in the channel 24 or may rely on gravity. The channel 24 may further include electrical contacts 26 which mate with corresponding electrical contacts on the handle 10 for transferring power to the utensil 8, as will be explained below. As stated above, the base 4 may further include one or more connectors 28 for detachably receiving a corresponding one of the utensil attachments. Alternatively, each of the connectors 28 may be universal and receive any one of the utensil attachments. Each of the connectors 28 may statically maintain a corresponding one of the utensil attachments in a predefined position relative to the base 4. For example, as shown in
Referring back to
The base 4 may further include an activator (e.g., a button 32, a switch) and an indicator 34 (e.g., an LED), and a printed circuit board (PCB) 36 detecting a state of the button 32. In this embodiment, the user may activate the base 4 by pressing the button 32. When the base 4 is activated and the handle 10 is coupled thereto, a power source inside the handle 10 may be recharged. The indicator 34 may provide visual confirmation that the base 4 is activated and/or the handle 10 is being charged. In another exemplary embodiment, the base 4 may be activated upon connection to an external power supply.
The handle 10 may further include a power source which, in the exemplary embodiment, includes at least one rechargeable battery 42. The power source may be at least partially situated within the handheld housing. As stated above, the batteries 42 may be charged by power from the power supply arrangement 30 in the base 4 when the handle 10 is coupled thereto. That is, when the handle 10 is inserted into the channel 24, first electrical contacts exposed from an external surface of the second portion 40 of the handle 10 may engage the electrical contacts 26 in the base 4 which are coupled to the power supply arrangement 30 to recharge the batteries 42 may be recharged. In other exemplary embodiments, the batteries 42 may be alkaline, or the handle 10 may include a power cord which interfaces with and is tethered to the power supply arrangement 30 in the base 4. Those of skill in the art will understand that the electrical contacts 26 need not be exposed to an external environment (e.g., to prevent corrosion, malfunction, etc.) so long as an electrical connection can be maintained with the electrical contacts on the handle 10.
Leads 44 electrically coupled the batteries 42 to second electrical contacts 46 which are exposed on a connector 48 formed at an end of the handle 10. In the exemplary embodiment, the connector 48 is a male connector shaped, sized and configured to detachably mate with a receiver 50 (e.g., a female connector) coupled to a housing of one of the utensil attachments, e.g., the scoop 12. In the exemplary embodiment shown in
The receiver 50 further includes third electrical contacts 52 which, when the receiver 50 is coupled to the handle 10, mate with the second electrical contacts 46, allowing power from the batteries 42 to be delivered to the utensil attachment. A heating element 54 is coupled to the third electrical contacts 52 to receive power therefrom via leads and is also coupled to the scoop 12. The heating element 54 may be at least partially situated within the housing of the utensil attachment. In use, the heating element 54 converts electrical energy into heat energy received from the batteries 42 to heat the scoop 12, as will be explained further below.
In the exemplary embodiment, the heating element 54 may be selectively activated by an activator (e.g., a button 56) disposed on the handle 8. The button 56 may be a conventional two-state button which, in a first state, completes a circuit and allows power to be delivered from the batteries 42 to the second electrical contacts 46 and to the heating element 54 when the receiver 50 is coupled to the handle 10. In a second state, the power supply is terminated. Those of skill in the art will understand that the activator may be, for example, a switch, a dial, a knob, etc. which uses an on/off mode or is adjustable to vary power delivery. For example, if the activator is a dial, rotating the dial in a first direction relative to the handle 10 may increase the power delivered to the second electrical contacts 46, while rotation in a second direction decreases the power delivery. An indicator (e.g., an LED 58) may be disposed on the handle 10 to indicate whether the power supply is enabled (first state) or terminated (second state). Those of skill in the art will understand that the indicator may be a visual, audible and/or tactile element which is indicative of whether the power supply is on/off and/or a rate of power delivery.
When not in use, the handle 10 may be coupled to the base 4 so that the batteries 42 can recharge, and the utensil attachments may be coupled to the base 4 to prevent loss or damage. When a user removes ice cream, for example, from the freezer, he may attach the scoop 12 to the handle 10 in the manner described above. The user may then activate the heating element 54 in the scoop 12 by pressing the button 56 on the handle 10. When the scoop 12 has been sufficiently heated, the user may decouple the handle 10 from the base 4 and scoop the ice cream. Because the scoop 12 is heated, it will cut through the ice cream very easily. Preferably, there is no heat transfer from the heating element 54 to the handle 10.
Those of skill in the art will understand that the utensil attachments, as well as any other portion of the base 4, the handle 10, etc. may be formed from, for example, plastic, stainless steel, rubber, ceramic, etc. However, any portion of the utensil attachment and/or handle 10 that may come in to contact with the food item is preferably made from a USDA food-rated material.
In another exemplary embodiment of the present invention, selected portions of the utensil attachments may be heated while remaining portions are unheated. For example, the selected portions may be manufactured from a material that absorbs the heat energy from the heating element and increase in temperature, while the remaining portions may be made from materials which do not change temperature (e.g., because they absorb the heat energy or are not good heat transfer materials). In this manner, the user may touch the remaining portions of the utensil attachment at any time during use of the utensil 8. In another exemplary embodiment, a coating may be applied to achieve the same effect. For example, with regard to the knife 14, a blade may increase in temperature while a shaft remains at a pre-heating temperature and does not get hotter. This embodiment may be advantageous if the user decides to exchange utensil attachments while using the utensil 8.
In another exemplary embodiment, the indicator 58 (or a further indicator) on the handle 10 may be indicative of a temperature of the utensil attachment. A temperature sensor in the handle 10 may sense the temperature of the heating element in the utensil attachment. The indicator 58 may vary in, for example, color, brightness, etc. as a function of the temperature. The handle 10 may further include a display which displays the temperature sensed by the temperature sensor. Thus, the user may be aware of the temperature of the utensil attachment.
In another exemplary embodiment, the handle 8 may include an intelligence unit (e.g., processor, memory, sensors, etc.) which executes a predefined procedure based on the temperature of the utensil attachment. For example, if the user inadvertently leaves the utensil “on”, when the utensil attachment reaches a predefined temperature the intelligence unit may automatically terminate the power supply to the attachment.
The present invention has been described with reference to the above exemplary embodiments. One skilled in the art would understand that the present invention may also be successfully implemented if modified. Accordingly, various modifications and changes may be made to the embodiments without departing from the broadest spirit and scope of the present invention as set forth in the claims that follow. The specification and drawings, accordingly, should be regarded in an illustrative rather than restrictive sense.
The present application claims priority to U.S. Provisional Patent Application Ser. No. 60/808,498 entitled “Ice Cream Center” filed May 26, 2006, the entire disclosure of which is incorporated herein by reference.
