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US3608538A Expired / Lapsed US ⏱️ 0.0 years remaining

Combination lunchbox provided with means for heating food and the like

Assignee: Individual
•
Filing: 1969-05-21
•
Granted: 1971-09-28
•
Expires: 1989-05-21
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Abstract

Abstract A lunchbox provided with means for receiving a displaceable container of liquid gas which supplies fuel to a burner element contained within the lunchbox to thereby heat the food and the like, and in which the lunchbox has a compartment for storing other objects, such as a vacuum bottle, food, and the like.

Inventors

  • 👤 Hermenegildo P Guerrero

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 14:34
CPC Classifications
F; F24; F24C; F24C5/00; F24C5/20

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 224 words
In combination, a portable lunchbox comprising, a lower housing having spaced sidewalls and end walls and a bottom wall, a cover hingedly secured to one of said sidewalls, means for locking said cover to said lower housing to close the top of said lower housing, a transverse wall in said lower housing dividing said lower housing into a first and second compartment, a burner positioned in said first compartment, a hollow pin supported in said second compartment and extending longitudinally into said second compartment and connected to said burner in said first compartment, an opening in the end wall of said lower housing communicating with the interior of said second compartment, said opening and second compartment adapted to receive a can of liquified gas fuel so that said can is horizontally supported in a longitudinal position within said second compartment so that most of the length of said can is confined within said second compartment, means in said second compartment for retaining said can in said second compartment against accidental displacement, said hollow pin adapted to extend inside said can when said can is within said second compartment so that the liquid gas within said can flows to said burner, valve means for controlling the flow of said liquid gas to said burner, said cover providing a third compartment for storage and the like.
Claim 2
Dependent Claim 224 words
In combination, a portable lunchbox comprising, a lower housing having spaced sidewalls and end walls and a bottom wall, a cover hingedly secured to one of said sidewalls, means for locking said cover to said lower housing to close the top of said lower housing, a transverse wall in said lower housing dividing said lower housing into a first and second compartment, a burner positioned in said first compartment, a hollow pin supported in said second compartment and extending longitudinally into said second compartment and connected to said burner in said first compartment, an opening in the end wall of said lower housing communicating with the interior of said second compartment, said opening and second compartment adapted to receive a can of liquified gas fuel so that said can is horizontally supported in a longitudinal position within said second compartment so that most of the length of said can is confined within said second compartment, means in said second compartment for retaining said can in said second compartment against accidental displacement, said hollow pin adapted to extend inside said can when said can is within said second compartment so that the liquid gas within said can flows to said burner, valve means for controlling the flow of said liquid gas to said burner, said cover providing a third compartment for storage and the like.
Claim 3
Dependent Claim 28 words
A structure as set forth in claim 1 in which the means for retaining the can in said second compartment comprise resilient members positioned inside said second compartment.
Claim 4
Dependent Claim 17 words
A structure as set forth in claim 1 in which a grid is positioned over the burner.
Claim 5
Dependent Claim 34 words
A structure as set forth in claim 1 in which an arcuate-shaped member is positioned in said second compartment so that it is above the can when the can is within said second compartment.
Claim 6
Dependent Claim 35 words
A structure as set forth in claim 1 in which the means for retaining the can in said second compartment comprIses a generally U-shaped member having resilient legs, with said legs being of arcuate shape.

References Cited (Backward Citations)

US3006406A Cited
US2973756A Cited
US3189016A Cited
US3292668A Cited
US3398732A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-09-27 1975-03-29 1975-09-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-09-27 1979-03-29 1979-09-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-09-27 1983-03-29 1983-09-28 $7700.00 Window Closed / Lapsed

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