US4124178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Energy and fuel conserving unit heater
Assignee: Individual
•
Filing: 1977-01-18
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Granted: 1978-11-07
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Expires: 1997-01-18
Abstract
Abstract The building heating system is by circulating hot air through the building by making use of a hot air furnace for heating the air for normal heat requirements and an auxiliary heater for lesser heat requirement by means of a hot water radiator placed in the air stream leading from the furnace to the air outlet in the building and supplied by a hot water boiler.
Inventors
- 👤 Ralph B. Burke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:16
CPC Classifications
F; F24; F24D; F24D5/00; F24D5/02; F24D5/04; F24D9/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
255 words
A heating system for a closed building having at least one floor and a space beneath said floor for housing a primary hot air heating unit in the form of a furnace, an air conduit leading from the floor to the bottom of said furnace and means for moving the air through said furnace to an outlet within the floor spaced a substantial distance from the air inlet after the air has reached a predetermined degree by passing through said furnace, the improvement comprising: a. a second air duct extending substantially in a horizontal plane and adjacent the under side of the floor having one end connected to the first mentioned air duct leading to the bottom of the furnace and the opposite end leading to a remote air outlet positioned in said building, b. a one-way air valve positioned at the jointure of the two air ducts allowing the air to pass only into the horizontal air duct and means for connecting the furnace air outlet leading from the top of the furnace to the said horizontal air duct, c. a hot water heater positioned below the horizontal air duct, d. a radiator positioned within said horizontal air duct and means for circulating hot water through the said radiator from the hot water heater, e. a blower for moving part of the air passing through the said horizontal air duct from the furnace through the said radiator for increasing the temperature of the air passing through the horizontal air duct to the air outlet.
Claim 2
Dependent Claim
255 words
A heating system for a closed building having at least one floor and a space beneath said floor for housing a primary hot air heating unit in the form of a furnace, an air conduit leading from the floor to the bottom of said furnace and means for moving the air through said furnace to an outlet within the floor spaced a substantial distance from the air inlet after the air has reached a predetermined degree by passing through said furnace, the improvement comprising: a. a second air duct extending substantially in a horizontal plane and adjacent the under side of the floor having one end connected to the first mentioned air duct leading to the bottom of the furnace and the opposite end leading to a remote air outlet positioned in said building, b. a one-way air valve positioned at the jointure of the two air ducts allowing the air to pass only into the horizontal air duct and means for connecting the furnace air outlet leading from the top of the furnace to the said horizontal air duct, c. a hot water heater positioned below the horizontal air duct, d. a radiator positioned within said horizontal air duct and means for circulating hot water through the said radiator from the hot water heater, e. a blower for moving part of the air passing through the said horizontal air duct from the furnace through the said radiator for increasing the temperature of the air passing through the horizontal air duct to the air outlet.
Claim 3
Dependent Claim
230 words
A closed building having at least one floor and a space beneath said floor having a hot air heating unit in the form of a furnace and a hot water heating unit associated therewith, wherein the furnace is provided with a burner and an air blower for circulating heated air through the furnace and the interior of said building; a. an air inlet conduit to the furnace within the building positioned adjacent said floor; b. a blower associated with said furnace for moving the air through the furnace heating unit from the said air inlet conduit to an air outlet within the interior of said building; c. the water heater heating unit having means for connecting the same with a water heated radiator positioned within the air outlet leading from the furnace and a second blower positioned within said air outlet to force air over the said radiator; d. the air inlet leading to the furnace having means adjacent the air inlet connecting the same with the furnace air outlet and a oneway inlet valve admitting air to pass into the air outlet conduit when the blower of the furnace heating unit is not in operation; e. said outlet conduit having a space surrounding the said radiator allowing air to pass freely about the radiator when the second blower forcing air to circulate through the radiator is not in operation.
Claim 4
Dependent Claim
230 words
A closed building having at least one floor and a space beneath said floor having a hot air heating unit in the form of a furnace and a hot water heating unit associated therewith, wherein the furnace is provided with a burner and an air blower for circulating heated air through the furnace and the interior of said building; a. an air inlet conduit to the furnace within the building positioned adjacent said floor; b. a blower associated with said furnace for moving the air through the furnace heating unit from the said air inlet conduit to an air outlet within the interior of said building; c. the water heater heating unit having means for connecting the same with a water heated radiator positioned within the air outlet leading from the furnace and a second blower positioned within said air outlet to force air over the said radiator; d. the air inlet leading to the furnace having means adjacent the air inlet connecting the same with the furnace air outlet and a oneway inlet valve admitting air to pass into the air outlet conduit when the blower of the furnace heating unit is not in operation; e. said outlet conduit having a space surrounding the said radiator allowing air to pass freely about the radiator when the second blower forcing air to circulate through the radiator is not in operation.
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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) | 1981-11-06 | 1982-05-08 | 1982-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-06 | 1986-05-08 | 1986-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-06 | 1990-05-08 | 1990-11-07 | $7700.00 | Window Closed / Lapsed |