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US4139760A Expired / Lapsed US ⏱️ 0.0 years remaining

Electrically heated kitchen utensil

Assignee: Individual
•
Filing: 1977-03-18
•
Granted: 1979-02-13
•
Expires: 1997-03-18
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Abstract

Abstract An electrically heated kitchen utensil has a thermally insulated handle provided with an internal electric heating unit adapted to releasably receive and heat a kitchen device, such as a knife, spoon, scoop, dipper or spatula. The heating unit comprises a pair of spaced parallel electric heating elements defining an channel which receives the shank of the kitchen device. The kitchen device is releasably secured in the channel by interengaged teeth on the shank and a spring biased pivoted member forming the bottom of the channel. The kitchen device is released by a release push button acting on the pivoted member to disengage the teeth. A rheostat is provided to regulate the heat output of the heating elements.

Inventors

  • 👤 Minnie V. Banks

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 23:36
CPC Classifications
H; H05; H05B; H05B3/00; A; A47; A47G; A47G21/00; A47G21/02; A47J; A47J43/00; A47J43/28; B; B26; B26B; B26B3/00; B26B7/00; H05B2203/00; H05B2203/03

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 400 words
A kitchen utensil, comprising a substantially elongated hollow handle having a lining of thermally insulative material therein, said handle having an opening at one end; an additional lining of thermally insulative material in a heating part of the handle, said additional lining having a front end and an opening at its front end registering with the opening of the handle; a pair of substantially parallel spaced electrical heating elements in the additional lining of the heating part of the handle, said heating elements forming the side walls of a channel in said handle, said channel extending from the opening at said one end of the handle and having an open bottom, a closed top, a closed rear end and an open front end, said heating elements defining an elongated electric heating unit in said handle; a member having front and rear ends, said member being pivotally affixed to the heating elements at said rear end thereof and being positioned at the open bottom of the channel, said pivoted member having laterally extending portions; electrical power supply conductors extending through the rear of the handle and electrically connected to the heating elements for supplying electrical energy to said heating elements to generate heat; a kitchen device of thermally conductive material having a shank adapted to fit into the channel in engagement with the pivoted member and between the heating elements in the handle via the opening in the one end of the handle; and releasable securing means in the handle at the channel for releasably securing the kitchen device in said channel in contact with the heating elements in a manner whereby when the heating elements generate heat the kitchen device is heated, said releasable securing means comprising interengageable teeth on the shank of said kitchen device and said pivoted member, a U-shaped ribbon spring between said pivoted member and the handle and pressing said pivoted member against said shank of said kitchen device to hold said kitchen device tightly in the channel, and a movable pushbutton member at the top of the handle for manually depressing said pivoted member, said pushbutton member having means straddling the channel and engageable with the laterally extending portions of the pivoted member for depressing said member against the bias of said spring to disengage the interengaged teeth of on said shank and pivoted member, thereby freeing said kitchen device for removal from the channel.
Claim 2
Dependent Claim 400 words
A kitchen utensil, comprising a substantially elongated hollow handle having a lining of thermally insulative material therein, said handle having an opening at one end; an additional lining of thermally insulative material in a heating part of the handle, said additional lining having a front end and an opening at its front end registering with the opening of the handle; a pair of substantially parallel spaced electrical heating elements in the additional lining of the heating part of the handle, said heating elements forming the side walls of a channel in said handle, said channel extending from the opening at said one end of the handle and having an open bottom, a closed top, a closed rear end and an open front end, said heating elements defining an elongated electric heating unit in said handle; a member having front and rear ends, said member being pivotally affixed to the heating elements at said rear end thereof and being positioned at the open bottom of the channel, said pivoted member having laterally extending portions; electrical power supply conductors extending through the rear of the handle and electrically connected to the heating elements for supplying electrical energy to said heating elements to generate heat; a kitchen device of thermally conductive material having a shank adapted to fit into the channel in engagement with the pivoted member and between the heating elements in the handle via the opening in the one end of the handle; and releasable securing means in the handle at the channel for releasably securing the kitchen device in said channel in contact with the heating elements in a manner whereby when the heating elements generate heat the kitchen device is heated, said releasable securing means comprising interengageable teeth on the shank of said kitchen device and said pivoted member, a U-shaped ribbon spring between said pivoted member and the handle and pressing said pivoted member against said shank of said kitchen device to hold said kitchen device tightly in the channel, and a movable pushbutton member at the top of the handle for manually depressing said pivoted member, said pushbutton member having means straddling the channel and engageable with the laterally extending portions of the pivoted member for depressing said member against the bias of said spring to disengage the interengaged teeth of on said shank and pivoted member, thereby freeing said kitchen device for removal from the channel.
Claim 3
Dependent Claim 31 words
A kitchen utensil as claimed in claim 1, wherein the kitchen device is one of a group consisting of a knife blade, a spoon, a scoop, a spatula and a dipper.

References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1982-02-12 1982-08-14 1983-02-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1986-02-12 1986-08-14 1987-02-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1990-02-12 1990-08-14 1991-02-13 $7700.00 Window Closed / Lapsed

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