US4085667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attic exhaust system
Assignee: Individual
•
Filing: 1977-02-24
•
Granted: 1978-04-25
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Expires: 1997-02-24
Abstract
Abstract An attic evacuation system having a solar energy transfer section supported on a roof with a spacer between the energy transfer section and the roof. Air from the attic passes through the energy transfer section through two flow channels. A turbine is provided in one of the flow channels and drives a compressor which supplies compressed air to the other flow channel. A plurality of energy absorbing blades are provided in the flow channel having the compressed air. A transparent window is provided in the energy transfer section adjacent the energy absorbing blades. A diffuser nozzle is provided at the end of the flow channel without the energy absorbing blades. The flow channel containing the energy absorbing blades has an ejector nozzle at the exit end thereof. The ejector nozzle flow is directed into the diffuser nozzle to entrain air to draw air through the turbine to drive the compressor.
Inventors
- 👤 Neil B. Christianson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:41
CPC Classifications
F; F03; F03G; F03G6/00; F03G6/02; F03G6/04; F03G6/045; F24; F24S; F24S10/00; F24S10/50; Y; Y02; Y02B; Y02B10/00; Y02B10/20; Y02B10/30; Y02B10/70; Y02E; Y02E10/00; Y02E10/40; Y02E10/44; Y02E10/46; Y10; Y10S; Y10S454/00; Y10S454/90
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
158 words
An attic exhaust system adapted to be supported on the roof of a building having an attic, comprising: a diffuser nozzle; an ejector nozzle positioned within the diffuser nozzle and having its nozzle adjacent the throat of the diffuser nozzle; an attic vent; means, connected between said attic vent and said diffuser nozzle, for providing a first air flow channel between the attic vent and the diffuser nozzle; means, connected between said attic vent and said ejector nozzle, for providing a second air flow channel between the attic vent and the ejector nozzle; a turbine rotor within said first flow channel; means, connected to turbine rotor, for supplying compressed air to said second flow channel; means for admitting solar radiation energy to said second flow channel; means, within said second flow channel, for absorbing solar energy radiation, whereby the air in said second flow channel is heated by radiant energy absorbed by the solar energy radiation absorbing means.
Claim 2
Dependent Claim
158 words
An attic exhaust system adapted to be supported on the roof of a building having an attic, comprising: a diffuser nozzle; an ejector nozzle positioned within the diffuser nozzle and having its nozzle adjacent the throat of the diffuser nozzle; an attic vent; means, connected between said attic vent and said diffuser nozzle, for providing a first air flow channel between the attic vent and the diffuser nozzle; means, connected between said attic vent and said ejector nozzle, for providing a second air flow channel between the attic vent and the ejector nozzle; a turbine rotor within said first flow channel; means, connected to turbine rotor, for supplying compressed air to said second flow channel; means for admitting solar radiation energy to said second flow channel; means, within said second flow channel, for absorbing solar energy radiation, whereby the air in said second flow channel is heated by radiant energy absorbed by the solar energy radiation absorbing means.
Claim 3
Dependent Claim
27 words
The device as recited in claim 1 wherein said radiation energy absorbing means includes a plurality of solar energy absorbing vanes positioned within the second flow channel.
Claim 4
Dependent Claim
43 words
The device as recited in claim 2 including means, between the first flow channel and the second for heating air in the second air flow channel in response to solar radiation absorbed by solar energy absorbing vanes in the first air flow channel.
Claim 5
Dependent Claim
31 words
The device as recited in claim 3 wherein said means for heating air in the second air flow channel includes a heat transfer wall secured to the solar energy absorbing vanes.
References Cited (Backward Citations)
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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) | 1981-04-24 | 1981-10-24 | 1982-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-24 | 1985-10-24 | 1986-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-24 | 1989-10-24 | 1990-04-25 | $7700.00 | Window Closed / Lapsed |