US4106552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of air-conditioning employing variable terminal box
Assignee: ARMER CONSTRUCTION Co
•
Filing: 1977-01-17
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Granted: 1978-08-15
•
Expires: 1997-01-17
Abstract
Abstract A heating and air conditioning system and a special variable volume terminal box associated therewith, the system utilizing energy dissipated by the lighting and other building facilities in a controlled manner through the functioning of the variable volume terminal box.
Inventors
- 👤 Jerrold L. Hufford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:07
CPC Classifications
F; F24; F24F; F24F5/00; F24F3/00; F24F3/044; F24F3/056
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
139 words
A method of air conditioning an enclosure comprising the steps of: circulating cool air from a source of cool air through a variable volume terminal, into an enclosure to be air conditioned and back to the source of cool air in a first passageway, circulating heated air from a source of heated air through said terminal into the enclosure when a damping means in said terminal is actuated to reduce the flow of cool air through said first passageway a predetermined amount, and periodically additionally heating said heated air from said source of heated air when the temperature of the air from said source of heated air fails to reach the temperature called for by a thermostat in the enclosure, the circulating of heated air through said second passageway is controlled by the pneumatic pressure in said first passageway.
Claim 2
Independent Claim
139 words
A method of air conditioning an enclosure comprising the steps of: circulating cool air from a source of cool air through a variable volume terminal, into an enclosure to be air conditioned and back to the source of cool air in a first passageway, circulating heated air from a source of heated air through said terminal into the enclosure when a damping means in said terminal is actuated to reduce the flow of cool air through said first passageway a predetermined amount, and periodically additionally heating said heated air from said source of heated air when the temperature of the air from said source of heated air fails to reach the temperature called for by a thermostat in the enclosure, the circulating of heated air through said second passageway is controlled by the pneumatic pressure in said first passageway.
Claim 3
Dependent Claim
26 words
The method of air conditioning set forth in claim 1 wherein: the circulated heated air is obtained from heat radiated by lighting sources in the enclosure.
Claim 4
Dependent Claim
21 words
The method of air conditioning set forth in claim 1 wherein: the circulated heated air is obtained from solar heated sources.
Claim 5
Dependent Claim
25 words
The method of air conditioning set forth in claim 1 wherein: the circulated heated air is obtained from a solar heated source within the enclosure.
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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) | 1981-08-14 | 1982-02-13 | 1982-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-08-14 | 1986-02-13 | 1986-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-08-14 | 1990-02-13 | 1990-08-15 | $7700.00 | Window Closed / Lapsed |