US4046132A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self extinguishing, portable cooking unit having folding fuel trays
Assignee: NEWCO FIREPLACE EQUIPMENT Ltd Inc
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Filing: 1975-11-10
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Granted: 1977-09-06
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Expires: 1995-11-10
Abstract
Abstract A portable cooking unit for use with charcoal or similar fuel comprises dished fuel trays open at both ends and joined pivotally to a frame for movement between a raised substantially vertical portion, in which they are adjacent one another, and a lowered substantially horizontal cooking position. Perforate grills are positionable in grill support means located in the fuel trays to retain fuel in the fuel trays for lighting when the fuel trays are in their raised position, and to cook on when the fuel trays are in their lowered position. A top damper is positionable over the upper open end of the fuel trays when they are in their raised position to smother the fuel when cooking is finished.
Inventors
- 👤 Charles R. White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:42
CPC Classifications
A; A47; A47J; A47J37/00; A47J37/06; A47J37/07; A47J37/0763
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
121 words
A portable cooking unit for use with charcoal or similar fuel comprising a. a frame, b. dished fuel trays pivotally joined to the frame and positionable between a raised substantially vertical lighting position in which the fuel trays are located adjacent one another and a lowered substantially horizontal cooking position, c. the fuel trays having open upper ends and open lower ends to form a flue allowing air passage therethrough when the fuel trays are in their raised position, d. grill support means located within and movable with the dished fuel trays, and e. perforate grills removably positionable in the grill support means in a manner to provide a fuel retention space between each tray and grill for receiving the fuel.
Claim 2
Dependent Claim
121 words
A portable cooking unit for use with charcoal or similar fuel comprising a. a frame, b. dished fuel trays pivotally joined to the frame and positionable between a raised substantially vertical lighting position in which the fuel trays are located adjacent one another and a lowered substantially horizontal cooking position, c. the fuel trays having open upper ends and open lower ends to form a flue allowing air passage therethrough when the fuel trays are in their raised position, d. grill support means located within and movable with the dished fuel trays, and e. perforate grills removably positionable in the grill support means in a manner to provide a fuel retention space between each tray and grill for receiving the fuel.
Claim 3
Dependent Claim
32 words
The cooking unit of claim 1 wherein the grill support means comprises multi-slotted brackets configured to receive the grills and locate them at spaced intervals above the bottoms of the fuel trays.
Claim 4
Dependent Claim
46 words
The cooking unit of claim 2, said brackets being secured to portions of said fuel trays adjacent their pivotal connections with said frame, the brackets of said fuel trays being laterally offset from each other as to be in non-interfering relation when the trays are raised.
Claim 5
Dependent Claim
31 words
The cooking unit of claim 1 wherein the perforate grills may be positioned in the grill support means in a manner to separate the perforate grills from the fuel for cooking.
Claim 6
Dependent Claim
29 words
The cooking unit of claim 1 wherein the perforate grills are positioned in the fuel trays at inwardly facing angles, when the fuel trays are in their raised position.
Claim 7
Dependent Claim
49 words
The cooking unit of claim 1 including bails pivotally joined to the fuel trays and positionable between a raised carrying position to carry the cooking unit when the fuel trays are in their raised position, and a lowered supporting position to support the fuel trays in their lowered position.
Claim 8
Dependent Claim
32 words
The cooking unit of claim 1 including raised rails located transversely in the fuel trays to prevent the fuel from moving downward when the fuel trays are placed in their raised position.
Claim 9
Dependent Claim
26 words
The cooking unit of claim 1 including protruding teeth located at the open lower ends of the fuel trays to prevent the fuel from passing therethrough.
Claim 10
Dependent Claim
41 words
The cooking unit of claim 1 including a lighter drawer mounted in the frame below the fuel trays and slideable between an open position to allow air into the flue and a closed position to prevent air from entering the flue.
Claim 11
Dependent Claim
54 words
The cooking unit of claim 9, further provided with damper means mounted across the open upper ends of the fuel trays in their raised position and movable between open and closed positions, the damper and drawer co-operating when in their closed positions to exclude air from the fuel trays and thereby extinguish the fuel.
Claim 12
Dependent Claim
34 words
The cooking unit of claim 10, said lighter drawer fitting into said frame in such a manner that when in its closed position the lower open ends of the raised fuel trays are sealed.
Claim 13
Dependent Claim
29 words
The cooking unit of claim 1 including a top damper which fits over the open upper ends of the fuel trays when in raised position to close the flue.
Claim 14
Dependent Claim
37 words
The cooking unit of claim 1 wherein the perforate grills are positioned in the fuel trays in laterally spaced relation, when the fuel trays are in their raised position, to provide an air space between the grills.
Claim 15
Dependent Claim
43 words
The cooking unit of claim 1 including a top damper releasably closing the open upper ends of the fuel trays, when in raised position, and releasably securing the trays together, in said raised position, substantially closing the abutting side edges of the trays.
Claim 16
Dependent Claim
23 words
The cooking unit of claim 1, said fuel trays being pivotally joined to said frame at their inner ends and adjacent their bottoms.
Claim 17
Dependent Claim
289 words
A portable cooking unit for use with charcoal or similar fuel comprising: a. a frame, b. dished fuel trays pivotally joined to the frame and positionable between a raised substantially vertical lighting position, in which the fuel trays are located adjacent one another, and a lowered substantially horizontal cooking position, c. the fuel trays having open upper ends and open lower ends to form a flue allowing air passage therethrough when the fuel trays are in their raised position, d. grill support means located within and movable with the dished fuel trays comprising multi-slotted brackets configured to receive the grills and locate them at spaced intervals above the fuel trays. e. perforate grills removably positionable in the grill support means between a position to provide a fuel retention space therebetween for receiving the fuel, and a position to separate the perforate grills from the fuel for cooking, f. bails pivotally joined to the fuel trays and positionable between a raised carrying position to carry the cooking unit when the fuel trays are in their raised position, and a lowered supporting position to support the fuel trays in their lowered position, g. raised rails located transversely in the fuel trays to prevent the fuel from moving downward when the fuel trays are placed in their raised position, protruding teeth located at the open lower ends of the fuel trays to prevent the fuel from passing therethrough, i. a lighter drawer mounted in the frame below the fuel trays slideable between an open position to allow air into the flue and a closed position to prevent air from entering the flue, and j. a top damper which fits over the open upper ends of the fuel trays to close the flue.
Claim 18
Dependent Claim
289 words
A portable cooking unit for use with charcoal or similar fuel comprising: a. a frame, b. dished fuel trays pivotally joined to the frame and positionable between a raised substantially vertical lighting position, in which the fuel trays are located adjacent one another, and a lowered substantially horizontal cooking position, c. the fuel trays having open upper ends and open lower ends to form a flue allowing air passage therethrough when the fuel trays are in their raised position, d. grill support means located within and movable with the dished fuel trays comprising multi-slotted brackets configured to receive the grills and locate them at spaced intervals above the fuel trays. e. perforate grills removably positionable in the grill support means between a position to provide a fuel retention space therebetween for receiving the fuel, and a position to separate the perforate grills from the fuel for cooking, f. bails pivotally joined to the fuel trays and positionable between a raised carrying position to carry the cooking unit when the fuel trays are in their raised position, and a lowered supporting position to support the fuel trays in their lowered position, g. raised rails located transversely in the fuel trays to prevent the fuel from moving downward when the fuel trays are placed in their raised position, protruding teeth located at the open lower ends of the fuel trays to prevent the fuel from passing therethrough, i. a lighter drawer mounted in the frame below the fuel trays slideable between an open position to allow air into the flue and a closed position to prevent air from entering the flue, and j. a top damper which fits over the open upper ends of the fuel trays to close the flue.
Claim 19
Dependent Claim
79 words
A solid fuel stove comprising in combination a base, a pair of fire pan means pivotally supported on the base and swingable between an open-face-to-open-face fuel-ignition-chamber-forming-relation and an end-to-end aligned open-face-up burning fuel holding relation, upper portions of the fire pan means in fuel-ignition-chamber-forming-relation forming an upright hollow enclosure having an upper open-mouth, there being air inlet means provided in the lower portions of each of fire pan means in fuel-ignition-chamber-forming-relation to permit entry of air into the enclosure.
Claim 20
Dependent Claim
79 words
A solid fuel stove comprising in combination a base, a pair of fire pan means pivotally supported on the base and swingable between an open-face-to-open-face fuel-ignition-chamber-forming-relation and an end-to-end aligned open-face-up burning fuel holding relation, upper portions of the fire pan means in fuel-ignition-chamber-forming-relation forming an upright hollow enclosure having an upper open-mouth, there being air inlet means provided in the lower portions of each of fire pan means in fuel-ignition-chamber-forming-relation to permit entry of air into the enclosure.
Claim 21
Dependent Claim
157 words
A portable cooking unit for use with charcoal or similar fuel, comprising: a. a frame, b. dished fuel trays pivotally joined to the frame and positionable between a raised, substantially vertical fuel-igniting position in which the fuel trays are located adjacent one another and a lowered, substantially horizontal cooking position, c. the fuel trays having open upper ends and open lower ends to form a flue allowing air passage therethrough when the fuel trays are in their raised position, d. perforate grills removably positionable in the trays in a manner to provide a fuel retention space between each tray and grill, and e. grill mounting means positioned for maintaining the grills in upwardly converging relation to each other when the trays are in their raised position, thereby exposing to flame rising vertically from below pieces of fuel retained against the upwardly converging grills along substantially the length of the grills for promoting uniform ignition of the fuel.
Claim 22
Dependent Claim
157 words
A portable cooking unit for use with charcoal or similar fuel, comprising: a. a frame, b. dished fuel trays pivotally joined to the frame and positionable between a raised, substantially vertical fuel-igniting position in which the fuel trays are located adjacent one another and a lowered, substantially horizontal cooking position, c. the fuel trays having open upper ends and open lower ends to form a flue allowing air passage therethrough when the fuel trays are in their raised position, d. perforate grills removably positionable in the trays in a manner to provide a fuel retention space between each tray and grill, and e. grill mounting means positioned for maintaining the grills in upwardly converging relation to each other when the trays are in their raised position, thereby exposing to flame rising vertically from below pieces of fuel retained against the upwardly converging grills along substantially the length of the grills for promoting uniform ignition of the fuel.
Claim 23
Dependent Claim
148 words
A portable cooking unit for use with charcoal or similar fuel, comprising: a. a frame, b. dished trays pivotally joined to the frame and positionable between a raised, substantially vertical fuel-igniting position in which the fuel trays are located adjacent one another and a lowered, substantially horizontal cooking position, c. the fuel trays having open upper ends and open lower ends to form a flue allowing air passage therethrough when the fuel trays are in their raised position, d. perforate grills removably positionable in the trays in a manner to provide a fuel retention space between each tray and grill, and e. a plurality of teeth on the open lower ends of the trays projecting inwardly therefrom when the trays are in their raised position and spaced apart to retain pieces of fuel within the fuel retention space but to allow fuel ash to gravitate downwardly between them.
Claim 24
Dependent Claim
148 words
A portable cooking unit for use with charcoal or similar fuel, comprising: a. a frame, b. dished trays pivotally joined to the frame and positionable between a raised, substantially vertical fuel-igniting position in which the fuel trays are located adjacent one another and a lowered, substantially horizontal cooking position, c. the fuel trays having open upper ends and open lower ends to form a flue allowing air passage therethrough when the fuel trays are in their raised position, d. perforate grills removably positionable in the trays in a manner to provide a fuel retention space between each tray and grill, and e. a plurality of teeth on the open lower ends of the trays projecting inwardly therefrom when the trays are in their raised position and spaced apart to retain pieces of fuel within the fuel retention space but to allow fuel ash to gravitate downwardly between them.
Claim 25
Dependent Claim
30 words
The cooking unit of claim 19 including a drawer mounted removably on the frame below the fuel trays for receiving fuel ash therein and movable between open and closed positions.
Claim 26
Dependent Claim
52 words
The cooking unit of claim 20 including damper means mounted across the open upper ends of the fuel trays in their raised position and movable between open and closed positions, the damper and drawer cooperating when in their closed positions to exclude air from the fuel trays and thereby extinguish the fuel.
Claim 27
Dependent Claim
208 words
A portable cooking unit for use with charcoal or similar fuel, comprising: a. a frame, b. dished fuel trays pivotally joined to the frame and positionable between a raised, substantially vertical fuel-igniting position in which the fuel trays are located adjacent one another and a lowered, substantially horizontal cooking position, c. the fuel trays having open upper ends and open lower ends to form a flue allowing air passage therethrough when the fuel trays are in their raised position, d. perforate grills removably positionable in the trays in a manner to provide a fuel retention space between each tray and grill, e. fuel retention means on the trays for retaining pieces of fuel within the fuel retention space while allowing fuel ash to graviate downwardly between them when the trays are in their raised position, f. a drawer mounted on the frame below the fuel trays for receiving fuel ash therein, and movable between open and closed positions, and g. damper mounted across the open upper ends of the fuel trays in their raised position and movable between open and closed positions, the damper and drawer cooperating when in their closed positions to exclude air from the fuel trays and thereby extinguish burning fuel contained in the trays.
Claim 28
Dependent Claim
208 words
A portable cooking unit for use with charcoal or similar fuel, comprising: a. a frame, b. dished fuel trays pivotally joined to the frame and positionable between a raised, substantially vertical fuel-igniting position in which the fuel trays are located adjacent one another and a lowered, substantially horizontal cooking position, c. the fuel trays having open upper ends and open lower ends to form a flue allowing air passage therethrough when the fuel trays are in their raised position, d. perforate grills removably positionable in the trays in a manner to provide a fuel retention space between each tray and grill, e. fuel retention means on the trays for retaining pieces of fuel within the fuel retention space while allowing fuel ash to graviate downwardly between them when the trays are in their raised position, f. a drawer mounted on the frame below the fuel trays for receiving fuel ash therein, and movable between open and closed positions, and g. damper mounted across the open upper ends of the fuel trays in their raised position and movable between open and closed positions, the damper and drawer cooperating when in their closed positions to exclude air from the fuel trays and thereby extinguish burning fuel contained in the trays.
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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) | 1980-09-05 | 1981-03-07 | 1981-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-05 | 1985-03-07 | 1985-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-05 | 1989-03-07 | 1989-09-06 | $7700.00 | Window Closed / Lapsed |