US3586823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination of an electrical radiant food warming and illuminating graphic display apparatus
Assignee: MARTIN BROWER CORP
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Filing: 1969-12-03
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Granted: 1971-06-22
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Expires: 1989-12-03
Abstract
Abstract An apparatus for maintaining food at an elevated temperature and for simultaneously illuminating a graphic transparency containing decorative or advertising material. An electric lamp which supplies heat to food, serves as well to illuminate the transparency. The apparatus includes a corrugated rack for supporting the food units to be maintained heated.
Inventors
- 👤 Jacques Schier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:14
CPC Classifications
H; H05; H05B; H05B3/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
163 words
An apparatus for maintaining units of precooked food at an elevated temperature prior to sale and for Displaying illuminated graphic advertising and sales promoting material, said apparatus comprising; generally horizontally disposed tray means for supporting food units to be heated; a radiant energy supply electric lamp providing both heat and light energy; frame means supporting said radiant energy supply electric lamp to overlie said tray; holder means connected to said frame means and adapted to carry a graphic transparency to depend from said frame means; first reflector means for directing thermal energy from said radiant energy supply uniformly downwardly onto said tray to provide substantially equal heating over an entire expanse of said tray; second reflector means for directing light energy laterally to illuminate said transparency; and said first reflector means is a downwardly facing arcuate reflector mounted above said radiant energy supply electric lamp, and said second reflector means is a forwardly facing reflector mounted behind said radiant energy supply electric lamp.
Claim 2
Independent Claim
163 words
An apparatus for maintaining units of precooked food at an elevated temperature prior to sale and for Displaying illuminated graphic advertising and sales promoting material, said apparatus comprising; generally horizontally disposed tray means for supporting food units to be heated; a radiant energy supply electric lamp providing both heat and light energy; frame means supporting said radiant energy supply electric lamp to overlie said tray; holder means connected to said frame means and adapted to carry a graphic transparency to depend from said frame means; first reflector means for directing thermal energy from said radiant energy supply uniformly downwardly onto said tray to provide substantially equal heating over an entire expanse of said tray; second reflector means for directing light energy laterally to illuminate said transparency; and said first reflector means is a downwardly facing arcuate reflector mounted above said radiant energy supply electric lamp, and said second reflector means is a forwardly facing reflector mounted behind said radiant energy supply electric lamp.
Claim 3
Dependent Claim
21 words
The apparatus set forth in claim 1 wherein said radiant energy supply electric lamp is a tubular quartz infrared electric lamp.
Claim 4
Dependent Claim
15 words
The apparatus set forth in claim 1 wherein said tray means is a corrugated tray.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |