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A Practical Guide to 'Free-Energy' Devices

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CLAUDE MEAD and WILLIAM HOLMES<br />

US Patent 4,229,661 21st Oc<strong>to</strong>ber 1980 Inven<strong>to</strong>rs: Claude Mead and William Holmes<br />

POWER PLANT FOR CAMPING TRAILER<br />

Note: This patent is not a free-energy patent, but it does provide a suggestion for an integrated and practical<br />

system for providing power for people living in a caravan which is frequently off-grid but which occasionally is<br />

positioned where electrical mains power is available. It describes a practical system for s<strong>to</strong>ring wind energy for<br />

high-power electrical power supply, and so is of interest.<br />

ABSTRACT<br />

A power plant for mobile homes, camping trailers, and the like, capable of capturing low-powered wind energy,<br />

s<strong>to</strong>ring the energy in the form of compressed air, and delivering it on demand in the form of household electrical<br />

current. The device comprises a wind turbine which drives an air compressor which feeds a s<strong>to</strong>rage tank. When<br />

required, the compressed air drives a turbine coupled <strong>to</strong> an electrical genera<strong>to</strong>r. Various pressure regula<strong>to</strong>rs are<br />

used <strong>to</strong> control the speed of the genera<strong>to</strong>r. The wind turbine is also coupled <strong>to</strong> an alterna<strong>to</strong>r which keeps a bank<br />

of batteries charged. A DC mo<strong>to</strong>r running on the batteries, is used when necessary, <strong>to</strong> boost the drive of the air<br />

compressor during periods of heavy or long power drain. Provision is made for rapidly recharging the power plant<br />

from either a supply of compressed air or from an AC power source.<br />

US Patent References:<br />

2230526 Wind power plant February, 1941 Clay<strong>to</strong>r 290/44<br />

2539862 Air-driven turbine power plant January, 1951 Rushing 290/44<br />

3315085 Auxiliary power supply for aircraft April, 1967 Mileti et al. 290/55<br />

3546474 Electrohydraulic Transmission of Power December, 1979 DeCourcy et al. 290/1<br />

4150300 Electrical and thermal system for buildings April, 1979 VanWinkle 290/55<br />

BACKGROUND OF THE INVENTION<br />

The current shortage of fossil fuel and public concern for the quality of the environment have triggered a hurried<br />

search for alternate forms of energy. The capture and use of solar energy, and its derivative, wind power, is the<br />

object of many new inventions. Due <strong>to</strong> the inefficiency of the collec<strong>to</strong>r device and s<strong>to</strong>rage media, use of these<br />

forms of energy has been limited <strong>to</strong> low-power stationery applications. Yet wind power should be adequate for<br />

any application requiring very low power or a short, occasional low <strong>to</strong> medium power supply of energy. These<br />

circumstances are encountered, for instance, in a refrigerated railroad car where occasional bursts of power are<br />

required <strong>to</strong> run the refrigerating system in order <strong>to</strong> maintain a low temperature inside the car. Similar<br />

circumstances are found in some mobile housing units such as a camping trailer. There, again, a supply of<br />

household current might be necessary for a short time between long periods of travel. In such instances, a<br />

system can be devised for accumulating energy generated by a wind turbine powered by the wind or by the air<br />

draft created by the motion of the vehicle. It is further desirable that the power system be capable of being<br />

replenished from non-polluting energy sources which can be encountered along the travel route.<br />

SUMMARY OF THE INVENTION<br />

It is accordingly an object of the instant invention <strong>to</strong> provide a novel power plant for mobile homes, and the like,<br />

which captures wind energy, s<strong>to</strong>res it in the form of compressed air, and delivers it on demand in the form of<br />

household electrical current.<br />

Another object of this invention is <strong>to</strong> provide a power plant which does not discharge polluting effluents in<strong>to</strong> the<br />

atmosphere.<br />

Still another object of the invention is <strong>to</strong> provide a power plant which can be recharged by capturing the effect of<br />

the wind, or the effect of the air stream created by the movement of the vehicle.<br />

A further object of the invention is <strong>to</strong> provide a power plant which can be recharged from a household current<br />

electrical outlet.<br />

It is also an object of this invention <strong>to</strong> provide a power plant which can be replenished from a source of<br />

compressed air such as those found in au<strong>to</strong>motive service stations.<br />

A - 1021

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