Patent US3745912A successfully refreshed from Google Patents.
US3745912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Broiler with heat sink means
Assignee: Jenn Air Corp
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Filing: 1972-03-16
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Granted: 1973-07-17
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Expires: 1992-03-16
Abstract
Abstract An indoor open-air broiler having a heat sink in the form of a plate, with openings therethrough, adapted to underlie heating elements and grill and disposed above the grease drip pan so that greases and drippings falling thereon, after partial vaporization, pass on through to the drip pan. The plate has an upper surface of hills and valleys (preferably black) facing the heating elements, and a bottom surface (which may be smooth) facing the drip pan. The plate absorbs heat from the heating elements and because of its upper surface maximizes heat emittance back towards the grill while minimizing heat emittance downwardly towards the drip pan.
Inventors
- 👤 T Field
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:52
CPC Classifications
A; A47; A47J; A47J37/00; A47J37/06; A47J37/067; A47J37/0676
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
102 words
A broiling device comprising: a heat source, grill means for supporting meat in proximity to the heat source for broiling, means situated below the grill for collecting meat grease drippings from the meat, means in the form of a metal plate disposed beneath the heat source and grill and above the collecting means for temporarily intercepting falling meat grease drippings and for defining heat sink means, said plate having means for permitting drainage of grease drippings on toward the collecting means, said plate having a dark upper surface facing the heat source and grill for maximizing heat emittance back toward the grill.
Claim 2
Dependent Claim
102 words
A broiling device comprising: a heat source, grill means for supporting meat in proximity to the heat source for broiling, means situated below the grill for collecting meat grease drippings from the meat, means in the form of a metal plate disposed beneath the heat source and grill and above the collecting means for temporarily intercepting falling meat grease drippings and for defining heat sink means, said plate having means for permitting drainage of grease drippings on toward the collecting means, said plate having a dark upper surface facing the heat source and grill for maximizing heat emittance back toward the grill.
Claim 3
Dependent Claim
21 words
The invention according to claim 1 wherein the upper surface of the plate comprises hills and valley for maximizing surface exposure.
Claim 4
Dependent Claim
38 words
The invention according to claim 2 wherein some of said valleys interconnect with one another and define inclined troughs for conveying grease and drippings to lower elevations and terminating at openings for drainage therethrough to the collecting means.
Claim 5
Dependent Claim
18 words
The invention according to claim 1 wherein the bottom surface of the plate has a lesser surface exposure.
Claim 6
Dependent Claim
20 words
The invention according to claim 1 wherein the metal plate is cast iron with openings therethrough defining means for drainage.
Claim 7
Dependent Claim
92 words
A broiler device comprising: a heat source, grill means for supporting meat in proximity to the heat source for broiling, means beneath the grill for collecting meat grease drippings, heat sink means horizontally disposed beneath the heat source and grill and above the collecting means and including means therethrough for drainage of meat grease drippings, having fallen thereon, on to the collecting means below, said heat sink means having a dark upper surface of hills and valleys for increasing surface exposure facing the grill for maximizing heat emittance back towards the grill.
Claim 8
Dependent Claim
92 words
A broiler device comprising: a heat source, grill means for supporting meat in proximity to the heat source for broiling, means beneath the grill for collecting meat grease drippings, heat sink means horizontally disposed beneath the heat source and grill and above the collecting means and including means therethrough for drainage of meat grease drippings, having fallen thereon, on to the collecting means below, said heat sink means having a dark upper surface of hills and valleys for increasing surface exposure facing the grill for maximizing heat emittance back towards the grill.
Claim 9
Dependent Claim
28 words
The invention according to claim 6 wherein said valleys are disposed on an incline and interconnected for conveying meat grease drippings downwardly to said openings where they terminate.
Claim 10
Dependent Claim
117 words
In an open-air broiler having a grill for supporting meat in proximity to a heat source for broiling and a grease collecting means situated below the grill for catching grease drippings from the meat, the improvement comprising heat sink means in the form of a metal plate disposed beneath the grill and heat source and above the grease collecting means, said plate having means for permitting grease drippings, having fallen thereon from the meat, to pass on towards the collecting means, said plate having a dark upper surface of hills and valleys facing the grill as an aid to reemitting heat at a higher rate back toward the grill than toward the grease drippings beneath the plate.
Claim 11
Dependent Claim
117 words
In an open-air broiler having a grill for supporting meat in proximity to a heat source for broiling and a grease collecting means situated below the grill for catching grease drippings from the meat, the improvement comprising heat sink means in the form of a metal plate disposed beneath the grill and heat source and above the grease collecting means, said plate having means for permitting grease drippings, having fallen thereon from the meat, to pass on towards the collecting means, said plate having a dark upper surface of hills and valleys facing the grill as an aid to reemitting heat at a higher rate back toward the grill than toward the grease drippings beneath the plate.
Claim 12
Dependent Claim
29 words
The invention according to claim 8 wherein the valleys are interconnected and sloping from the hills and communicate with passage means for conveying grease drippings to beneath the plate.
Claim 13
Dependent Claim
138 words
Apparatus for open-air broiling of meat comprising: a housing including a recess having side walls and a bottom wall, a heat source supported in the housing, grill means at the entrance to the housing for supporting meat in proximity to the heat source for broiling, said bottom wall of the housing situated below the heat source for catching grease drippings from the meat, heat sInk means in the form of a metal plate disposed below the heat source and above the bottom wall and permitting passage therethrough of grease drippings to the bottom wall, said plate having a black upper surface of uneven contour for increased surface exposure facing the grill whereby heat received from the heat source is radiated back toward the grill at a higher rate than on toward the grease drippings on the bottom wall.
Claim 14
Dependent Claim
138 words
Apparatus for open-air broiling of meat comprising: a housing including a recess having side walls and a bottom wall, a heat source supported in the housing, grill means at the entrance to the housing for supporting meat in proximity to the heat source for broiling, said bottom wall of the housing situated below the heat source for catching grease drippings from the meat, heat sInk means in the form of a metal plate disposed below the heat source and above the bottom wall and permitting passage therethrough of grease drippings to the bottom wall, said plate having a black upper surface of uneven contour for increased surface exposure facing the grill whereby heat received from the heat source is radiated back toward the grill at a higher rate than on toward the grease drippings on the bottom wall.
Claim 15
Dependent Claim
26 words
The invention according to claim 10 wherein the housing bottom wall is provided with a slope for aiding flow of grease drippings therefrom toward a receptacle.
Claim 16
Dependent Claim
20 words
The invention according to claim 11 wherein the slope terminates in an opening leading to a removable grease drippings receptacle.
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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) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |