Patent US4168797A successfully refreshed from Google Patents.
US4168797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heated air distribution system
Assignee: Individual
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Filing: 1978-03-31
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Granted: 1979-09-25
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Expires: 1998-03-31
Abstract
Abstract A heated air distribution system for a forced air heating system of a home or the like for distributing heated air preferably from a higher heated area to a lower heated area. The heated air distribution system utilizes the air return ducts of the forced air heating system which are common to the higher and lower heated areas. The heated air distribution system comprises an air forcing device coupled to the air return ducts for forcing heated air from the higher heated area through the air return ducts to the lower heated areas. This equalizes the temperatures of the air in the two areas, prevents overheating of the higher heated area and conserves energy.
Inventors
- 👤 Paul R. Luke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:45
CPC Classifications
F; F24; F24D; F24D5/00; F24D5/02; F24D5/04
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
156 words
A heated air distribution system in combination with an air heating system for distributing higher heated air from a first room to lower heated air in a separate second room where an air temperature difference exists between said first and second rooms for any reason, said air heating system having an air supply means, a furnace for heating the air and supplying the heated air through said air supply means to at least one of said first and second rooms, and an air return means common to said first and second rooms for returning lower heated air from said first and second rooms to said furnace, said distribution system further comprising means coupled to said air return means for forcing higher heated air from said first room through said common air return means directly into said lower heated air of said second room for equalizing the temperature of the air in said first and second rooms.
Claim 2
Dependent Claim
156 words
A heated air distribution system in combination with an air heating system for distributing higher heated air from a first room to lower heated air in a separate second room where an air temperature difference exists between said first and second rooms for any reason, said air heating system having an air supply means, a furnace for heating the air and supplying the heated air through said air supply means to at least one of said first and second rooms, and an air return means common to said first and second rooms for returning lower heated air from said first and second rooms to said furnace, said distribution system further comprising means coupled to said air return means for forcing higher heated air from said first room through said common air return means directly into said lower heated air of said second room for equalizing the temperature of the air in said first and second rooms.
Claim 3
Dependent Claim
23 words
The heated air distribution system of claim 1 wherein said heated air forcing means comprises a fan, and means for rotating said fan.
Claim 4
Dependent Claim
29 words
The heated air distribution system of claim 1 wherein said air return means comprises a duct, and said heated air forcing means comprises a fan mounted within said duct.
Claim 5
Dependent Claim
61 words
The heated air distribution system of claim 1 wherein said air return means comprises a duct having one end portion communicating with said first room and another portion of said duct communicating with said second room, and said heated air forcing means comprises a fan connected to said one end portion of said duct, and means for rotatably driving said fan.
Claim 6
Dependent Claim
31 words
The heated air distribution system of claim 1 wherein control means are provided in said first room coupled to said heated air forcing means for operating said heated air forcing means.
Claim 7
Dependent Claim
34 words
The heated air distribution system of claim 1 wherein said control means are thermostatic and operate said heated air forcing means when the higher heated air in said first room exceeds a predetermined temperature.
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) | 1982-09-24 | 1983-03-26 | 1983-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-09-24 | 1987-03-26 | 1987-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-09-24 | 1991-03-26 | 1991-09-25 | $7700.00 | Window Closed / Lapsed |