US4645909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toaster and overhead support
Assignee: FARBERWARE LICENSING Co LLC
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Filing: 1984-06-01
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Granted: 1987-02-24
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Expires: 2004-06-01
Abstract
Abstract A toaster is mountable on a heat reflective overhead support which is adapted to be secured to a supporting surface such as the underside of a cabinet. The support is recessed from the front of the toaster so as to accomodate the lip of the cabinet. The toaster is provided with a shelf or grill which is movable between a first, heating position and a second, delivery position below and forward of the heating position. The grill is lockable in the heating position by a locking mechanism which comprises a releasable latch bar. An infrared (IR) sensor senses IR radiation produced by a food article supported on the grill. The IR sensor is part of an electrical circuit which controls the heater elements as well as an electromechanical element which releases the latch bar. When the latch bar is released, a spring assisted parallelogram linkage transfers the grill by gravity from the heating position to the delivery position. At the same time, the linkage pivots a front door between closed and open positions to provide access to the toasted food article.
Inventors
- 👤 Matthew A. Thoben
- 👤 Earl Clowers
- 👤 Guy Cihi
- 👤 Dean Ball
- 👤 Jack L. McCurdy
- 👤 Al S. Rummelsburg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:31
CPC Classifications
A; A47; A47J; A47J37/00; A47J37/06; A47J37/0623; A47J37/0629; A47J37/0635
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
183 words
Toaster, comprising: (a) a frame, (b) a shelf for supporting a food article mounted on the frame so as to be moveable between a first horizontal heating position and a second horizontal delivery position forward and below the heating position, the shelf maintaining a horizontal position while moving through the heating and delivery positions, (c) heater means disposed within the frame for heating a food article, (d) means disposed within the frame for sensing IR radiated by the food article, sensing the ambient temperature within the frame and compensating for the ambient temperature so as to provide an output signal that is indicative of the actual surface temperature of the food article, (e) means for activating said heater means, (f) means coupled to receive said output signal for de-activating said heater means when the surface temperature of the food article exceeds a preselected threshold, (g) overhead support means adapted to be secured to and below a supporting surface, and (h) mating structure on said overhead support means and said frame for securing said frame to said overhead support means below said supporting surface.
Claim 2
Dependent Claim
183 words
Toaster, comprising: (a) a frame, (b) a shelf for supporting a food article mounted on the frame so as to be moveable between a first horizontal heating position and a second horizontal delivery position forward and below the heating position, the shelf maintaining a horizontal position while moving through the heating and delivery positions, (c) heater means disposed within the frame for heating a food article, (d) means disposed within the frame for sensing IR radiated by the food article, sensing the ambient temperature within the frame and compensating for the ambient temperature so as to provide an output signal that is indicative of the actual surface temperature of the food article, (e) means for activating said heater means, (f) means coupled to receive said output signal for de-activating said heater means when the surface temperature of the food article exceeds a preselected threshold, (g) overhead support means adapted to be secured to and below a supporting surface, and (h) mating structure on said overhead support means and said frame for securing said frame to said overhead support means below said supporting surface.
Claim 3
Dependent Claim
26 words
Toaster according to claim 1 including linkage means coupled to the shelf for transferring the shelf by gravity from said heating position to said delivery position.
Claim 4
Dependent Claim
44 words
Toaster according to claim 2 including a door pivotably mounted on said frame, said linkage means being coupled to said door so as to pivot said door between closed and open positions while transferring said grill from said heating position to said delivery position.
Claim 5
Dependent Claim
95 words
Toaster, comprising: (a) first means for heating a food article, (b) second means for electronically sensing both the surface temperature of the food article and the ambient temperature within the toaster, (c) third means for electronically sensing only the ambient temperature within the toaster, (d) fourth means responsive to the second and third means for electronically providing an indication of the actual surface temperature of the food article, and (e) fifth means for electronically controlling the first means based on the indication of the surface temperature of the food article provided by the fourth means.
Claim 6
Dependent Claim
95 words
Toaster, comprising: (a) first means for heating a food article, (b) second means for electronically sensing both the surface temperature of the food article and the ambient temperature within the toaster, (c) third means for electronically sensing only the ambient temperature within the toaster, (d) fourth means responsive to the second and third means for electronically providing an indication of the actual surface temperature of the food article, and (e) fifth means for electronically controlling the first means based on the indication of the surface temperature of the food article provided by the fourth means.
Claim 7
Dependent Claim
41 words
Toaster according to claim 4 wherein said means for sensing surface temperature includes means for sensing IR radiation emitted by the surface of the food article, and wherein said means for sensing ambient temperature includes means for sensing ambient IR radiation.
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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) | 1990-02-23 | 1990-08-25 | 1991-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-23 | 1994-08-25 | 1995-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-23 | 1998-08-25 | 1999-02-24 | $7700.00 | Window Closed / Lapsed |