Patent US4177651A successfully refreshed from Google Patents.
US4177651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method of heating and cooling
Assignee: Individual
•
Filing: 1977-12-28
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Granted: 1979-12-11
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Expires: 1997-12-28
Abstract
Abstract A Freon driven engine, drivably connected with the compressor of an air conditioner unit, utilizes normally wasted heat from the air conditioner condenser to supplement the heat supplied by a primary heat source thus reducing the quantity of energy normally required from the heat source to expand Freon and maintain operation of the engine. The evaporator of the air conditioner unit is utilized to reduce the temperature of the Freon exhausted by the engine before return to the heat source.
Inventors
- 👤 Lorrell C. McFarland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:53
CPC Classifications
F; F25; F25B; F25B27/00; F25B29/00; F25B29/003
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
99 words
The method of utilizing the normally wasted heat of an air conditioning system, comprising: providing an air conditioner unit having a compressor, a condenser and an evaporator; drivably connecting a liquid hydrocarbon operated engine with said compressor; connecting a primary heat source with said engine; conveying the heat exhausted by said condenser to the primary heat source; connecting said evaporator with a heat exchanger; interposing an area to be cooled between the evaporator and the heat exchanger; passing the heated liquid hydrocarbon exhausted by said engine through said heat exchanger; and, returning the cooled liquid hydrocarbon to said engine.
Claim 2
Independent Claim
99 words
The method of utilizing the normally wasted heat of an air conditioning system, comprising: providing an air conditioner unit having a compressor, a condenser and an evaporator; drivably connecting a liquid hydrocarbon operated engine with said compressor; connecting a primary heat source with said engine; conveying the heat exhausted by said condenser to the primary heat source; connecting said evaporator with a heat exchanger; interposing an area to be cooled between the evaporator and the heat exchanger; passing the heated liquid hydrocarbon exhausted by said engine through said heat exchanger; and, returning the cooled liquid hydrocarbon to said engine.
Claim 3
Dependent Claim
22 words
The method according to claim 1 including the additional step of interposing a cooling tower between the heat exchanger and the evaporator.
Claim 4
Dependent Claim
25 words
The method according to claim 1 including the additional step of interposing an area to be heated between the primary heat source and the condenser.
Claim 5
Dependent Claim
19 words
The method according to claim 3 including storing excess heat generated by the primary heat source and the condenser.
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) | 1982-12-10 | 1983-06-11 | 1983-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-10 | 1987-06-11 | 1987-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-10 | 1991-06-11 | 1991-12-11 | $7700.00 | Window Closed / Lapsed |