US3822740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating system
Assignee: Individual
•
Filing: 1972-03-06
•
Granted: 1974-07-09
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Expires: 1992-03-06
Abstract
Abstract A wind driven heating system in which a windmill wheel is connected to drive a liquid pump which agitates a heat transfer liquid to heat it and to drive the heated liquid through a circuit to a radiator.
Inventors
- 👤 R Hackett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:50
CPC Classifications
F; F24; F24D; F24D3/00; F24D3/02; Y; Y10; Y10S; Y10S416/00; Y10S416/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
145 words
A heating system comprising means defining an enclosure, the outside of which is exposed to the atmosphere, a fluid reservoir, a fluid agitator in said reservoir, said agitator provided with an inlet communicating with the fluid in said reservoir and an outlet communicating with the inlet of said loop, a wind driven rotatable element connected to drive said agitator, a radiator through which a heating fluid from said reservoir passes, said radiator being located within said enclosure, a fluid conduit circuit interconnecting said radiator and said agitator in a closed loop and a valve positioned at the agitator outlet, said valve being operative in response to the temperature of the heating fluid thereat to prevent fluid flow out from said agitator for water temperature below a predetermined level whereby the fluid in said reservoir is heated by the fluid friction upon actuation of said agitator.
Claim 2
Dependent Claim
145 words
A heating system comprising means defining an enclosure, the outside of which is exposed to the atmosphere, a fluid reservoir, a fluid agitator in said reservoir, said agitator provided with an inlet communicating with the fluid in said reservoir and an outlet communicating with the inlet of said loop, a wind driven rotatable element connected to drive said agitator, a radiator through which a heating fluid from said reservoir passes, said radiator being located within said enclosure, a fluid conduit circuit interconnecting said radiator and said agitator in a closed loop and a valve positioned at the agitator outlet, said valve being operative in response to the temperature of the heating fluid thereat to prevent fluid flow out from said agitator for water temperature below a predetermined level whereby the fluid in said reservoir is heated by the fluid friction upon actuation of said agitator.
Claim 3
Dependent Claim
14 words
A heating system according to claim 1, wherein said agitator is a centrifugal pump.
Claim 4
Dependent Claim
23 words
A heating system according to claim 1, wherein said fluid conduit circuit includes means defining a restriction to fluid flow through said circuit.
Claim 5
Dependent Claim
33 words
A heating system according to claim 1, wherein said system includes a valve operable to divert fluid flow to bypass said radiator and a thermostat in said enclosure connected to adjust Said valve.
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) | 1977-07-08 | 1978-01-07 | 1978-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-08 | 1982-01-07 | 1982-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-08 | 1986-01-07 | 1986-07-09 | $7700.00 | Window Closed / Lapsed |