Patent US4229661A successfully refreshed from Google Patents.
US4229661A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power plant for camping trailer
Assignee: Individual
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Filing: 1979-02-21
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Granted: 1980-10-21
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Expires: 1999-02-21
Abstract
Abstract A power plant for mobile homes, camping trailers, and the like, capable of capturing low powered aeolian energy, storing said energy in the form of compressed air, and delivering it on demand in the form of household electrical current. The device comprises a wind turbine driving an air compressor which feeds a storage tank. On demand, the compressed air drives a turbine coupled to an electrical generator. Various pressure regulators are used to regulate the speed of the generator. The wind turbine is also coupled to an alternator which maintains a bank of electrical batteries charged. A DC motor running on the batteries is used when necessary to boost the drive of the air compressor during periods of heavy or long power drain. Provision is made for rapidly recharging the power plant from either a supply of compressed air or from an AC power source.
Inventors
- 👤 Claude F. Mead
- 👤 William F. Holmes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:22
CPC Classifications
F; F03; F03D; F03D9/00; F03D9/10; F03D9/17; F03D9/11; F03D9/20; F03D9/25; F03D9/30; F03D9/32; Y; Y02; Y02B; Y02B10/00; Y02B10/30; Y02E; Y02E10/00; Y02E10/70; Y02E10/72; Y02E10/728; Y02E60/00; Y02E60/16; Y02E70/00; Y02E70/30
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
190 words
A power plant which comprises: (a) first rotating means responsive to movement of a fluid; (b) first fluid compressor driven by the first rotating means; (c) first means for coupling the first rotating means to the first fluid compressor; (d) first electrical energy generator driven by the first rotating means; (e) second means for coupling the first rotating means to the first generator; (f) means for accumulating electrical energy generated by the first generator; (g) second rotating means responsive to said accumulated energy; (h) second fluid compressor driven by the second rotating means; (i) means for storing compressed fluid; (j) fluid conduit means for connecting the outputs of the first and second fluid compressors to the means for storing; (k) means responsive to fluid pressure within the means for storing for controlling the operation of the first and second fluid compressors; (l) third rotating means responsive to the expansion of compressed fluid; (m) means for connecting the means for storing to the third rotating means; (n) second electrical energy generator driven by third rotating means; and (o) means for coupling the third rotating means to the second electrical energy generator.
Claim 2
Dependent Claim
190 words
A power plant which comprises: (a) first rotating means responsive to movement of a fluid; (b) first fluid compressor driven by the first rotating means; (c) first means for coupling the first rotating means to the first fluid compressor; (d) first electrical energy generator driven by the first rotating means; (e) second means for coupling the first rotating means to the first generator; (f) means for accumulating electrical energy generated by the first generator; (g) second rotating means responsive to said accumulated energy; (h) second fluid compressor driven by the second rotating means; (i) means for storing compressed fluid; (j) fluid conduit means for connecting the outputs of the first and second fluid compressors to the means for storing; (k) means responsive to fluid pressure within the means for storing for controlling the operation of the first and second fluid compressors; (l) third rotating means responsive to the expansion of compressed fluid; (m) means for connecting the means for storing to the third rotating means; (n) second electrical energy generator driven by third rotating means; and (o) means for coupling the third rotating means to the second electrical energy generator.
Claim 3
Dependent Claim
60 words
The power plant claimed in claim 1 wherein the means for controlling the operation of the first and second fluid compressors comprise: (a) first switch means responsive to high pressure for turning off the second rotating means and for inhibiting the first fluid compressor; and (b) second switch means responsive to lower pressure for turning on the second rotating means.
Claim 4
Dependent Claim
83 words
The power plant claimed in claim 2 wherein the means for storing compressed fluid comprise: (a) a high pressure tank; (b) a low pressure tank; (c) first valve means responsive to fluid pressure in the low pressure tank for regulating the flow of fluid from the high pressure tank to the low pressure tank; and (d) the means for connecting the means for storing to the third rotating means comprise fluid conduit means and second valve means for controlling the flow of fluid.
Claim 5
Dependent Claim
31 words
The power plant claimed in claim 3 wherein said means for storing further comprise means responsive to the rotating speed of the third rotating means for controlling the first valve means.
Claim 6
Dependent Claim
69 words
The power plant claimed in claim 4 which further comprises: (a) fourth rotating means responsive to electrical energy; (b) third fluid compressor driven by the fourth rotating means; (c) means for coupling the fourth rotating means to the third fluid compressor; (d) means for connecting the third fluid compressor to the means for storing; and (e) means for connecting the fourth rotating means to an external electrical energy source.
Claim 7
Dependent Claim
38 words
The power plant claimed in claim 4 wherein said means for accumulating comprise at least one electrical storage battery; a battery charger connected to said battery; and means for connecting said battery to an external electrical power source.
Claim 8
Dependent Claim
67 words
The power plant claimed in claim 1 wherein said first rotating means comprise: Lp1 (a) a rotating shaft; (b) a conical spindle at one end of the shaft; (c) a propeller having in its hub a conical hole engaging said spindle; (d) means for resiliently holding the propeller engaged around said spindle; and (e) means for adjusting the pressure of the means for holding against the propeller.
Claim 9
Dependent Claim
17 words
The power plant claimed in claim 4 wherein the first means for coupling comprise a centrifugal clutch.
Claim 10
Dependent Claim
11 words
The power plant claimed in claim 7 installed into a vehicle.
Claim 11
Dependent Claim
84 words
The power plant claimed in claim 9 wherein said high pressure tank comprises a means for connecting said tank to an outside source of compressed air; said means for accumulating electrical energy comprises at least one electrical storage battery; said second rotating means comprise a DC motor; said third rotating means comprise a turbine powered by expansion of compressed air; said second electrical energy generator comprise a generator of household alternating current; and means for distributing said household current to the vehicle electrical appliances.
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) | 1983-10-21 | 1984-04-21 | 1984-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-21 | 1988-04-21 | 1988-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-21 | 1992-04-21 | 1992-10-21 | $7700.00 | Window Closed / Lapsed |