Patent US4587948A successfully refreshed from Google Patents.
US4587948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable gas-fired cooking device
Assignee: HAGLUND LEISURE PRODUCTS Ltd
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Filing: 1985-03-20
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Granted: 1986-05-13
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Expires: 2005-03-20
Abstract
Abstract A portable cooking device comprising a housing having two cooking sections hinged together along a respective side wall whereby the sections may be disposed side by side with their open ends facing upwardly and displaceable to be juxtaposed with their open ends facing one another. Each section has a bottom wall, opposed side walls and opposed end walls. One of the cooking sections has a heat generating element secured therein beneath a heat transmitting support frame. The other concave section has a gas burner assembly supportable on the bottom wall thereof below a further heat transmitting support frame. The assembly has an open top end pan with a gas burner element disposed substantially centrally therein. A flame shield is disposed over the burner. A secondary heat deflection support plate maintains the pan spaced from the bottom wall and the side and end walls. The pan is also ventilated by vent openings provided in the side and end walls of the cooking section.
Inventors
- 👤 Allen Haglund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:45
CPC Classifications
A; A47; A47J; A47J37/00; A47J37/06; A47J37/07; A47J37/0704; A47J37/0713; F; F24; F24C; F24C3/00; F24C3/04; F24C3/047; F24C3/14
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
212 words
A portable cooking device comprising a housing having two concave cooking sections hinged together along a respective side wall whereby said sections may be disposed side by side with their open ends facing upwardly and displaceable to be juxtaposed with their open ends facing one another; said sections each having a bottom wall, opposed side walls and opposed end walls; one of said concave cooking sections having a heat generating element secured therein beneath a heat transmitting support frame, the other of said concave cooking sections having a gas burner assembly supportable on said bottom wall thereof below a further heat transmitting support frame, said assembly having an open top end pan in the form of a concave curved heat reflector dish which has a gas burner element disposed substantially centrally therein, a flame shield over said burner, and support means to maintain said reflector dish spaced from said side walls and end walls of said other section, said support means being a secondary heat reflector plate having opposed angulated support side walls to support said heat reflector dish elevated from said bottom wall, said heat reflector dish being dimensioned to fit inside said other section spaced from said opposed side and end walls thereof, and ventilation means to ventilate said pan.
Claim 2
Dependent Claim
212 words
A portable cooking device comprising a housing having two concave cooking sections hinged together along a respective side wall whereby said sections may be disposed side by side with their open ends facing upwardly and displaceable to be juxtaposed with their open ends facing one another; said sections each having a bottom wall, opposed side walls and opposed end walls; one of said concave cooking sections having a heat generating element secured therein beneath a heat transmitting support frame, the other of said concave cooking sections having a gas burner assembly supportable on said bottom wall thereof below a further heat transmitting support frame, said assembly having an open top end pan in the form of a concave curved heat reflector dish which has a gas burner element disposed substantially centrally therein, a flame shield over said burner, and support means to maintain said reflector dish spaced from said side walls and end walls of said other section, said support means being a secondary heat reflector plate having opposed angulated support side walls to support said heat reflector dish elevated from said bottom wall, said heat reflector dish being dimensioned to fit inside said other section spaced from said opposed side and end walls thereof, and ventilation means to ventilate said pan.
Claim 3
Dependent Claim
27 words
A portable cooking device as claimed in claim 1 wherein said one section is a gas burner stove, said other section being a barbecue gas burner assembly.
Claim 4
Dependent Claim
49 words
A portable cooking device as claimed in claim 1 wherein said burner is detachably secured to said heat reflector dish and wherein there is further provided a detachable heat retention product support frame securable to said heat reflector dish intermediate said burner and said further heat transmitting support frame.
Claim 5
Dependent Claim
17 words
A portable cooking device as claimed in claim 3 wherein said heat retention product is lava rock.
Claim 6
Dependent Claim
34 words
A portable cooking device as claimed in claim 3 wherein said further heat transmitting support frame is a wire mesh frame which is detachably secured to said opposed end walls of said other section.
Claim 7
Dependent Claim
56 words
A portable cooking device as claimed in claim 3 wherein said burner is an elongated burner tube having a plurality of flame orifices on opposed sides thereof to direct flames in the direction of opposed portions of said curved side wall of said heat reflector dish, and wherein a further shield is supported under said burner.
Claim 8
Dependent Claim
61 words
A portable cooking device as claimed in claim 6 wherein said flame spreader shield and said further shield are elongated rectangular shields and form between them a flame directing throat to direct said flame in the direction of said opposed portions of said curved side wall, said upper shield being shaped as a concave upper surface to collect food drippings therein.
Claim 9
Dependent Claim
36 words
A portable cooking device as claimed in claim 3 wherein said heat reflector housing has a top surface formed of reflecting material, said secondary heat reflector plate also having an outer surface formed of reflecting material.
Claim 10
Dependent Claim
26 words
A portable cooking device as claimed in claim 3 wherein said heat reflecting dish and said secondary heat reflector plate are constructed of stainless steel material.
Claim 11
Dependent Claim
86 words
A portable cooking device as claimed in claim 6 wherein said burner tube has a detachable securing end and a gas inlet nozzle receiving end, said securing end being a flanged end abutting an end wall of said heat reflector dish, and fastener means to detachably secure said flanged end to said end wall, said flange supporting said tube across said dish elevated from the inner wall thereof with said inlet nozzle receiving end extending through an opening in an opposed end wall of said dish.
Claim 12
Dependent Claim
73 words
A portable cooking device as claimed in claim 3 wherein said dish is a rectangular pan having a curved rectangular wall shaped on a 12-inch radius and opposed transverse end walls, a pair of holes in said opposed end walls disposed in a common plane, said heat retention product support frame being a wire mesh frame having a pair of opposed support wires removably positionable in respective ones of said pair of holes.
Claim 13
Dependent Claim
20 words
A portable cooking device as claimed in claim 1 wherein said angulated support walls are provided with ventilation openings therein.
Claim 14
Dependent Claim
67 words
A portable cooking device as claimed in claim 1 wherein said ventilation means is constituted by vent openings in said opposed side and end walls of said other section, at least some of said openings being formed by right angle wall sections formed in angulated side or end walls of said other section, and one or more gas line connectors secured to said right angle wall section.
Claim 15
Dependent Claim
92 words
A portable cooking device as claimed in claim 1 wherein a collapsible wall assembly is secured adjacent said hinged side wall of said one of said sections, and a heat reflector pan secured under said heat generating element and spaced from said bottom wall and said side and end walls of said one of said sections; said heat reflector pan having angulated front, rear and side walls to reflect heat toward said wall assembly when positioned to an operable vertical position extending above said open end of said one of said sections.
Claim 16
Dependent Claim
84 words
A portable cooking device as claimed in claim 14 wherein said heat generating element is constituted by one or more detachably securable burner nozzles, said heat reflector pan having a bottom wall with one or more posts therein to receive a gas line connecting end to which said burner nozzles are connected, said collapsible wall assembly being hingedly secured to said rear wall of said heat reflector pan and defined by a hinged flat rear wall to which is connected opposed hinged side walls.
Claim 17
Dependent Claim
80 words
A portable cooking device as claimed in claim 15 wherein said ventilation means is constituted by vent openings in said opposed side and end walls of said one of said sections, at least some of said openings being formed by right angle wall sections formed in angulated side or end walls of said one section, and one or more gas line connectors secured to said right angle wall section(s) and to a gas line having said gas line connecting end.
Claim 18
Dependent Claim
68 words
A portable cooking device as claimed in claim 2 wherein a common one of said opposed end walls of said sections has a right angle wall section formed therein to receive a gas line connector, a gas line connecting bridge interconnecting said gas line connector of each said sections when disposed in side-by-side relationship, said bridge having a gas inlet connector for connection to a pressurized gas reservoir.
Claim 19
Dependent Claim
87 words
A portable cooking device as claimed in claim 16 wherein a handle hole is formed in an outer one of said opposed side wall of both said housing concave sections above a right angle wall section formed therein and below a vertical side wall edge portion, and a hinge clamp plate hinged to a lower edge of one of said side wall edge portions for clamping retention across juxtaposed side wall edge portions when said sections are juxtaposed and forming a handle for transporting said cooking device.
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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) | 1989-05-12 | 1989-11-11 | 1990-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-12 | 1993-11-11 | 1994-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-12 | 1997-11-11 | 1998-05-13 | $7700.00 | Window Closed / Lapsed |