US3963414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for sequestering combustion gas of an open burner
Assignee: Individual
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Filing: 1974-12-09
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Granted: 1976-06-15
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Expires: 1994-12-09
Abstract
Abstract Combustion gas flowing alongside a surface of an open burner, such as over the upright catalytic bed of a space heater or a generally horizontal surface such as the top plate of a space heater, is segregated by an aperture in the path of flow of the combustion gas, so that the gas flows through such aperture instead of being dissipated into a room space and mixed with the ambient air of the space. The effluent combustion gas thus sequestered is withdrawn by suction through a discharge duct. The opening through such aperture or discharge duct can be regulated by a shutter or damper, which can be adjusted by a thermostat responsive to the temperature of gas flowing through the segregating aperture or discharge duct, to enlarge the duct opening as the temperature rises and to restrict the opening as the temperature decreases.
Inventors
- 👤 Fred H. Jensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:29
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/001; F23; F23D; F23D14/00; F23D14/12; F23D14/18; F23M; F23M11/00; F23M11/02; F24C3/00; F24C3/04; F24C3/042
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
132 words
A catalytic space heater for heating a living space comprising an upright catalytic bed having one surface openly exposed to the living space and having a sheet gas flow of substantially smokeless gaseous combustion products upward alongside said exposed surface, and a plenum chamber having in one wall thereof a slot extending along the upper margin of said upright catalytic bed exposed surface adjacent to one edge of the sheet gas flow, said exposed surface guiding the flow of gas toward said slot for flow of gas from such sheet gas flow through said slot into said plenum chamber, and said plenum chamber having an outlet leading to a location separated from the living space in which the heater is located, said plenum chamber flaring lengthwise of said slot toward said outlet.
Claim 2
Dependent Claim
132 words
A catalytic space heater for heating a living space comprising an upright catalytic bed having one surface openly exposed to the living space and having a sheet gas flow of substantially smokeless gaseous combustion products upward alongside said exposed surface, and a plenum chamber having in one wall thereof a slot extending along the upper margin of said upright catalytic bed exposed surface adjacent to one edge of the sheet gas flow, said exposed surface guiding the flow of gas toward said slot for flow of gas from such sheet gas flow through said slot into said plenum chamber, and said plenum chamber having an outlet leading to a location separated from the living space in which the heater is located, said plenum chamber flaring lengthwise of said slot toward said outlet.
Claim 3
Dependent Claim
22 words
The apparatus defined in claim 1 in which the slot tapers from such one end toward the outlet of the plenum chamber.
Claim 4
Dependent Claim
149 words
A catalytic space heater for heating a living space comprising an upright backing, an upright catalytic bed carried by said backing, having one surface opening exposed to the living space and producing a sheet gas flow of substantially smokeless gaseous combustion products upward alongside said exposed surface, a plenum chamber sealed to the upper portion of said backing, having horizontally-elongated passage means extending along the upper margin of said upright catalytic bed exposed surface and spanning substantially entirely along the width of such sheet gas flow alongside said exposed surface, said passage means having a width perpendicular to said catalytic bed substantially equal to the width of such sheet gas flow, said exposed surface guiding the flow of gas toward said passage means for flow therethrough into said plenum chamber and through said plenum chamber to a location separated from the living space in which the heater is located.
Claim 5
Dependent Claim
149 words
A catalytic space heater for heating a living space comprising an upright backing, an upright catalytic bed carried by said backing, having one surface opening exposed to the living space and producing a sheet gas flow of substantially smokeless gaseous combustion products upward alongside said exposed surface, a plenum chamber sealed to the upper portion of said backing, having horizontally-elongated passage means extending along the upper margin of said upright catalytic bed exposed surface and spanning substantially entirely along the width of such sheet gas flow alongside said exposed surface, said passage means having a width perpendicular to said catalytic bed substantially equal to the width of such sheet gas flow, said exposed surface guiding the flow of gas toward said passage means for flow therethrough into said plenum chamber and through said plenum chamber to a location separated from the living space in which the heater is located.
Claim 6
Dependent Claim
25 words
The apparatus defined in claim 3, aand suction means for producing suction in the confining means to increase flow of gas through the passage means.
Claim 7
Dependent Claim
21 words
The apparatus defined in claim 3, in which the passage means is an upwardly-opening elongated slot leading into the confining means.
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) | 1979-06-15 | 1979-12-15 | 1980-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-15 | 1983-12-15 | 1984-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-15 | 1987-12-15 | 1988-06-15 | $7700.00 | Window Closed / Lapsed |