Patent US3749078A successfully refreshed from Google Patents.
US3749078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Space heater
Assignee: Individual
•
Filing: 1972-06-22
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Granted: 1973-07-31
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Expires: 1992-06-22
Abstract
Abstract A space heater particularly adapted for a gas fired log arrangement, which has a front window through which the flames can be viewed. A combustion chamber is arranged within and spaced from a housing, the products of combustion passing upwardly through baffle devices to secure full benefit of the heat. Room air passes by convection around the combustion chamber and baffle devices where it is heated and then passes out through a top opening. An air tight opening through the combustion chamber and housing is covered by a heat resistant glass window panel. Around a portion of the edge of the window panel are holes leading to the inside of the housing to enable air from the outside to pass to the inside of the housing, thereby to supply fresh air to be heated and also to impart a cooling influence on the glass window panel.
Inventors
- 👤 R Dupler
- 👤 Dupler A Cooley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:15
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/32; F24B; F24B1/00; F24B1/18; F24B1/1808
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
144 words
A space heater comprising a sheet metal housing having closed front and side walls, a rear wall, and an open top, a sheet metal combustion chamber arranged within and spaced from the walls of the housing, means including baffle devices for conducting products of combustion from said combustion chamber through the upper end of said housing, supporting means for said combustion chamber including at least one support member beneath said chamber and fixed to a housing wall, an opening in the front wall of said combustion chamber having edge flanges extending forwardly to the inside of the front wall of said housing, there being a corresponding opening in said housing, means providing an air tight connection between said edge flanges and said housing, a heat resistant glass window panel covering the opening in said housing, and means for retaining said glass panel in position.
Claim 2
Dependent Claim
144 words
A space heater comprising a sheet metal housing having closed front and side walls, a rear wall, and an open top, a sheet metal combustion chamber arranged within and spaced from the walls of the housing, means including baffle devices for conducting products of combustion from said combustion chamber through the upper end of said housing, supporting means for said combustion chamber including at least one support member beneath said chamber and fixed to a housing wall, an opening in the front wall of said combustion chamber having edge flanges extending forwardly to the inside of the front wall of said housing, there being a corresponding opening in said housing, means providing an air tight connection between said edge flanges and said housing, a heat resistant glass window panel covering the opening in said housing, and means for retaining said glass panel in position.
Claim 3
Dependent Claim
76 words
A space heater as claimed in claim 1, in which said glass panel retaining means comprises a frame having a first part bearing against the edge portion of said glass panel and a second part extending beyond such edge portion, and aperture means leading to the space between said housing and combustion chamber and adjacent said frame for enabling outside air to pass to the inside of the heater and assist in cooling said glass panel.
Claim 4
Dependent Claim
25 words
A space heater as claimed in claim 2, in which said aperture means is disposed beneath and concealed by said second part of the frame.
Claim 5
Dependent Claim
34 words
A space heater as claimed in claim 3, in which said aperture means comprises a row of holes extending across the upper edge portion of the glass panel and downwardly on opposite sides thereof.
Claim 6
Dependent Claim
51 words
A space heater as claimed in claim 1, comprising an open ended box-like channel below the window opening and extending through the housing front wall and combustion chamber front wall to afford limited access to the interior of the combustion chamber, and a cover for the outer end of said channel.
Claim 7
Dependent Claim
47 words
A space heater as claimed in claim 1, comprising a grilled opening in the front wall of said housing in the region below said support members, and a hinged door in said grilled opening to afford access to the interior of the housing beneath said combustion chamber.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |