Patent US4119834A successfully refreshed from Google Patents.
US4119834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical radiant heat food warmer and organizer
Assignee: Individual
•
Filing: 1976-07-23
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Granted: 1978-10-10
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Expires: 1996-07-23
Abstract
Abstract A food warmer includes a plurality of trays and associated lamps mounted on a frame for rotation in unison about a stationary standard. Each lamp is arranged above each respective tray to project heat downwardly only into the tray with which it is associated. The trays are pivotally supported on the frame and a switch associated with each tray is closed by pivotal movement of the tray upon placement of food on the tray to energize the lamp associated with the tray. A rotary connector is disposed between standard and frame, so that current can be supplied to each lamp regardless of the rotary position thereof. Each tray is detachable from the frame for cleaning and a switch override is selectively disposed between the tray and housing to prevent closing of the switch and energization of the lamp when necessary.
Inventors
- 👤 E. R. Losch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:22
CPC Classifications
A; A47; A47J; A47J36/00; A47J36/24; A47J36/2483; A47J36/2488; A47J37/00; A47J37/04; A47J37/046; H; H05; H05B; H05B3/00; H05B3/0033; H05B3/0071; H05B3/0076
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
204 words
An appliance for warming food comprising: a base for resting on a surface; a frame; means for supporting said frame to rotate about a vertical axis with respect to said base; a plurality of trays rotatable with said frame and supported at an upper end thereof by said frame for pivotable movement with respect to said frame; a plurality of heating means mounted on said frame above said trays to warm food placed on said trays, one of said heating being means arranged above each respective tray to project heat downwardly only to the tray with which it is associated, said heating means being arranged to rotate in unison with the frame so that each of the heating means is always in registry with its respective tray; switch means associated with each of said trays and carried by the frame, said switch means positioned for engagement by the tray for activating said heating means associated with the respective tray in response to pivotal movement of the tray relative to the frame from placement of food on the tray; and connector means for supplying energy to each of said heating means regardless of the rotary position of said heating means with respect to said base.
Claim 2
Dependent Claim
204 words
An appliance for warming food comprising: a base for resting on a surface; a frame; means for supporting said frame to rotate about a vertical axis with respect to said base; a plurality of trays rotatable with said frame and supported at an upper end thereof by said frame for pivotable movement with respect to said frame; a plurality of heating means mounted on said frame above said trays to warm food placed on said trays, one of said heating being means arranged above each respective tray to project heat downwardly only to the tray with which it is associated, said heating means being arranged to rotate in unison with the frame so that each of the heating means is always in registry with its respective tray; switch means associated with each of said trays and carried by the frame, said switch means positioned for engagement by the tray for activating said heating means associated with the respective tray in response to pivotal movement of the tray relative to the frame from placement of food on the tray; and connector means for supplying energy to each of said heating means regardless of the rotary position of said heating means with respect to said base.
Claim 3
Dependent Claim
22 words
A food warmer, according to claim 1, wherein said connector means includes a rotary connector disposed between said frame and said base.
Claim 4
Dependent Claim
42 words
The appliance of claim 2, further including a standard fixed to said base, wherein said standard includes one half of said rotary connector and wherein said frame is rotatably supported on said standard and includes the second half of said rotary connector.
Claim 5
Dependent Claim
24 words
The food warming appliance of claim 3, wherein said frame is disposed about said standard, and wherein the trays are detachable from said frame.
Claim 6
Dependent Claim
20 words
The food warming appliance of claim 3, wherein the heating means is an individual infrared lamp associated with each tray.
Claim 7
Dependent Claim
34 words
The food warming appliance of claim 5, wherein the lamps are connected in parallel to lines from the rotary connector and wherein said switch means is an individual switch in series with each lamp.
Claim 8
Dependent Claim
26 words
The food warmer of claim 6, wherein each tray includes means thereon to prevent the pivotal movement of the tray from closing the switch associated therewith.
Claim 9
Dependent Claim
48 words
The food warmer of claim 1, wherein means are provided on each tray for selective positioning between the tray and said frame to prevent the tray from engaging said switch, so as not to activate said switch and energize said heater when food is placed upon the tray.
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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) | 1981-10-09 | 1982-04-10 | 1982-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-09 | 1986-04-10 | 1986-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-09 | 1990-04-10 | 1990-10-10 | $7700.00 | Window Closed / Lapsed |