US3580164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hamburger cooking machine
Assignee: NAT IND Manufacturing
•
Filing: 1969-10-09
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Granted: 1971-05-25
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Expires: 1989-10-09
Abstract
Abstract A hamburger cooking machine includes a cooking element of the gas-fired, radiant energy, surface combustion type mounted on a frame in conjunction with an openwork chain patty conveyor arranged with both the upper and lower runs of the conveyor directly exposed to the cooking element. Means on the frame advance the conveyor, and a patty thereon, with respect to the cooking element to grill the patty. A bun conveyor is also mounted on the frame and is similarly moved with respect to a comparable source of heat so that a bun thereon is warmed or toasted. The hamburger patty and the bun are simultaneously conveyed through the machine, and are discharged at about the same time for assembly into a hamburger.
Inventors
- 👤 Edward D Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:41
CPC Classifications
A; A47; A47J; A47J37/00; A47J37/04; A47J37/044
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
99 words
A hamburger cooking machine comprising a frame, a plurality of cooking elements said frame each having a heat radiating surface, an openwork chain patty conveyor, means for mounting said patty conveyor on said frame to provide an upper run of said conveyor in a position relative to at least one of said radiating surfaces to cook a patty thereon and to provide a lower run of said conveyor directly adjacent another of said radiating surfaces, whereby material adhering to said conveyor lower run will be carbonized and fall by gravity, and means on said frame for driving said conveyor.
Claim 2
Dependent Claim
99 words
A hamburger cooking machine comprising a frame, a plurality of cooking elements said frame each having a heat radiating surface, an openwork chain patty conveyor, means for mounting said patty conveyor on said frame to provide an upper run of said conveyor in a position relative to at least one of said radiating surfaces to cook a patty thereon and to provide a lower run of said conveyor directly adjacent another of said radiating surfaces, whereby material adhering to said conveyor lower run will be carbonized and fall by gravity, and means on said frame for driving said conveyor.
Claim 3
Dependent Claim
27 words
A hamburger cooking machine as in claim 1 including means on said frame below said cooking element for catching grease and the like falling from said conveyor.
Claim 4
Dependent Claim
35 words
A hamburger cooking machine as in claim 1 including means on said frame and overlying said upper run in the path of a hamburger patty advancing thereon for lifting said hamburger patty from said conveyor.
Claim 5
Dependent Claim
36 words
A hamburger cooking machine as in claim 1 wherein said cooking elements on said frame are arranged with said heat radiating surfaces thereof above and below said upper run and said lower run and exposed thereto.
Claim 6
Dependent Claim
56 words
A hamburger cooking machine as in claim 1 including an openwork chain bun conveyor, means for mounting said bun conveyor on said frame parallel to said patty conveyor, and means on said frame for driving said bun conveyor in the same direction as and within the zone warmed by the cooking elements of said Patty conveyor.
Claim 7
Dependent Claim
18 words
A hamburger cooking machine as in claim 5 including means for subjecting said bun conveyor to radiant heat.
Claim 8
Dependent Claim
31 words
A hamburger cooking machine as in claim 1 in which means are provided on said frame for at least partially enclosing a portion of said patty conveyor between the ends thereof.
Claim 9
Dependent Claim
30 words
A hamburger cooking machine as in the claim 1 including means between said frame and said cooking element for varying the distance between said cooking element and said patty conveyor.
Claim 10
Dependent Claim
19 words
A hamburger cooking machine as in claim 1 in which said cooking element is a gas-fired surface combustion burner.
Claim 11
Dependent Claim
41 words
A hamburger cooking machine as in claim 1 in which said patty conveyor is subjected to heat from a plurality of cooking elements arranged initially to cook patties on said conveyor from below and finally to cook said patties from above.
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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) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |