Patent US3648680A successfully refreshed from Google Patents.
US3648680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Miniature camp stove
Assignee: Individual
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Filing: 1970-11-19
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Granted: 1972-03-14
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Expires: 1990-11-19
Abstract
Abstract This invention relates to a miniaturized camp stove consisting of a shallow cup-shaped receptacle with a lid that houses a burner and valved gas fitting in disassembled relation. When assembled, the receptacle fits atop of a branch of the gas fitting and provides the support for the cooking vessel when held firmly in place by the burner functioning as a fastener. Another branch of the fitting fastens onto the lid which thus provides a pedestal-type base for the unit. The main stem of the fitting is disposed horizontally with respect to the aforementioned branches and one end thereof houses a hollow needle of the type adapted for insertion into the rubber valve of a fuel canister while the other end contains a flow control valve.
Inventors
- 👤 Donald L Hein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:16
CPC Classifications
F; F24; F24C; F24C3/00; F24C3/14; F24C3/02; F24C3/027
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
261 words
The camp stove which comprises: a shallow generally cupshaped receptacle housing a central opening therein and an upstanding annular flange containing at least one vent; a lid sized and adapted to cooperate with the cup-shaped receptacle to define a covered container; gas fitting means having a stem portion intersected intermediate its ends by a cross piece, one end of said stem portion being adapted for connection to the lid so as to produce an upstanding support with said lid functioning as a base therefor, the other end of said stem portion being hollow and terminating in a neck of reduced dimension having an upwardly-facing shoulder at the base thereof, the cross piece having an opening therethrough communicating with the hollow interior of the stem portion to define therewith an inverted Tshaped passage, said T-shaped passage including a valve seat located in one branch of the cross piece facing the other branch thereof; means carried by the branch of the cross piece having the seat therein connectable to a source of fuel; valve means carried by said other branch of the cross piece adapted upon actuation into closed position to engage said valve seat and shut off the supply of fuel to the stem portion, and said valve upon actuation into open positiOn being adapted to unseat and permit the flow of fuel into said stem; and burner means mountable on the neck of the stem portion, said burner means functioning as a fastener to hold the cup-shaped receptacle down against the shoulder with the neck projecting up through the central opening.
Claim 2
Dependent Claim
261 words
The camp stove which comprises: a shallow generally cupshaped receptacle housing a central opening therein and an upstanding annular flange containing at least one vent; a lid sized and adapted to cooperate with the cup-shaped receptacle to define a covered container; gas fitting means having a stem portion intersected intermediate its ends by a cross piece, one end of said stem portion being adapted for connection to the lid so as to produce an upstanding support with said lid functioning as a base therefor, the other end of said stem portion being hollow and terminating in a neck of reduced dimension having an upwardly-facing shoulder at the base thereof, the cross piece having an opening therethrough communicating with the hollow interior of the stem portion to define therewith an inverted Tshaped passage, said T-shaped passage including a valve seat located in one branch of the cross piece facing the other branch thereof; means carried by the branch of the cross piece having the seat therein connectable to a source of fuel; valve means carried by said other branch of the cross piece adapted upon actuation into closed position to engage said valve seat and shut off the supply of fuel to the stem portion, and said valve upon actuation into open positiOn being adapted to unseat and permit the flow of fuel into said stem; and burner means mountable on the neck of the stem portion, said burner means functioning as a fastener to hold the cup-shaped receptacle down against the shoulder with the neck projecting up through the central opening.
Claim 3
Dependent Claim
31 words
The camp stove as set forth in claim 1 in which: the vent comprises at least one circumferentially elongate notch in the rim of the upturned flange bordering the cup-shaped receptacle.
Claim 4
Dependent Claim
90 words
The camp stove as set forth in claim 1 in which: the lid is bordered by a downturned skirt and has a centrally-located aperture therein, the portion of the stem resting atop the lid includes a threaded section, and a threaded fastener attachable to the threaded section of the stem holds the latter to the lid when one of said threaded members is passed through the aperture in the latter, the skirt bordering the lid functioning to raise the connection between the stem and fastener into a recessed position therein.
Claim 5
Dependent Claim
43 words
The camp stove as set forth in claim 1 in which: the means for connecting the gas fitting to a source of fuel comprises a hollow needle of the type adapted for insertion into the self-closing rubber valve of a pressurized fuel cannister.
Claim 6
Dependent Claim
45 words
The camp stove as set forth in claim 1 in which: the subassembly that includes the gas fitting, the valve means and the means connectable to a source of fuel is sized to fit inside the covered container defined by the lid and cup-shaped receptacle.
Claim 7
Dependent Claim
68 words
The camp stove as set forth in claim 1 in which: an orificed fuel-metering jet is located within the hollow stem portion, and said hollow stem portion contains an aperture downstream of said jet orifice and upstream of the burner that is open to the atmosphere, said jet being operative to direct fuel past said aperture so as to aspirate air therethrough in sufficient volume to support combustion.
Claim 8
Dependent Claim
39 words
The camp stove as set forth in claim 1 in which: the valve means is of the needle type adapted to cooperate with the valve seat upon relative movement therebetween to meter the flow of fuel to the burner.
Claim 9
Dependent Claim
32 words
The camp stove as set forth in claim 1 in which: the height of the upstanding flange bordering the cup-shaped receptacle is such that the burner lies recessed beneath the rim thereof.
Claim 10
Dependent Claim
73 words
The camp stove as set forth in claim 2 in which: the rim of the upstanding flange includes at least two circumferentially elongate notches arranged in angularly-spaced relation to one another, said notches cooperating with the bottom of a cooking vessel resting atop said rim to define slots sized to protect the burner flame from the wind while permitting the heated products of combustion to escape and admitting air to partially support combustion.
Claim 11
Dependent Claim
26 words
The camp stove as set forth in claim 5 in which: the burner is also sized to fit into the covered container with the stem subassembly.
Claim 12
Dependent Claim
208 words
The camp stove which comprises: a shallow generally cup-shaped receptacle housing a central opening therein and an upstanding annular flange containing at least one vent; a lid sized and adapted to cooperate with the cup-shaped receptacle to define a covered container; gas fitting means having a stem portion joined intermediate its ends by a projecting leg, one end of said stem portion being adapted for connection to the lid so as to produce an upstanding support with said lid functioning as a base therefor, the other end of said stem portion being hollow and terminating in a neck of reduced dimension having an upwardly-facing shoulder at the base thereof, the projecting leg having an opening therethrough communicating with the hollow interior of the stem portion to define therewith an L-shaped passage, means carried by the projecting leg connectable to a source of fuel; and burner means mountable on the neck of the stem portion, said burner means functioning as a fastener to hold the cup-shaped receptacle down against the shoulder with the neck projecting up through the central opening, said gas fitting means, means connectable to a source of fuel, and burner means being sized to fit inside the covered container defined by the lid and cup-shaped receptacle.
Claim 13
Dependent Claim
208 words
The camp stove which comprises: a shallow generally cup-shaped receptacle housing a central opening therein and an upstanding annular flange containing at least one vent; a lid sized and adapted to cooperate with the cup-shaped receptacle to define a covered container; gas fitting means having a stem portion joined intermediate its ends by a projecting leg, one end of said stem portion being adapted for connection to the lid so as to produce an upstanding support with said lid functioning as a base therefor, the other end of said stem portion being hollow and terminating in a neck of reduced dimension having an upwardly-facing shoulder at the base thereof, the projecting leg having an opening therethrough communicating with the hollow interior of the stem portion to define therewith an L-shaped passage, means carried by the projecting leg connectable to a source of fuel; and burner means mountable on the neck of the stem portion, said burner means functioning as a fastener to hold the cup-shaped receptacle down against the shoulder with the neck projecting up through the central opening, said gas fitting means, means connectable to a source of fuel, and burner means being sized to fit inside the covered container defined by the lid and cup-shaped receptacle.
Claim 14
Dependent Claim
31 words
The camp stove as set forth in claim 11 in which: the vent comprises at least one circumferentially elongate notch in the rim of the upturned flange bordering the cup-shaped receptacle.
Claim 15
Dependent Claim
90 words
The camp stove as set forth in claim 11 in which: the lid is bordered by a downturned skirt and has a centrally-located aperture therein, the portion of the stem resting atop the lid includes a threaded section, and a threaded fastener attachable to the threaded section of the stem holds the latter to the lid when one of said threaded members is passed through the aperture in the latter, the skirt bordering the lid functioning to raise the connection between the stem and fastener into a recessed position therein.
Claim 16
Dependent Claim
68 words
The camp stove as set forth in claim 11 in which: an orificed fuel-metering jet is located within the hollow stem portion, and said hollow stem portion contains an aperture downstream of said jet orifice and upstream of the burner that is open to the atmosphere, said jet being operative to direct fuel past said aperture so as to aspirate air therethrough in sufficient volume to support combustion.
Claim 17
Dependent Claim
32 words
The camp stove as set forth in claim 11 in which: the height of the upstanding flange bordering the cup-shaped receptacle is such that the burner lies recessed beneath the rim thereof.
Claim 18
Dependent Claim
73 words
The camp stove as set forth in claim 12 in which: the rim of the upstanding flange includes at least two circumferentially elongate notches arranged in angularly-spaced relation to one another, said notches cooperating with the bottom of a cooking vessel resting atop said rim to define slots sized to protect the burner flame from the wind while permitting the heated products of combustion to escape and admitting air to partially support combustion.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |