Solar-powered waste compactor, method of powering a waste compactor, and hydraulic unit therefor
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United States of America Patent
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Jan 17, 2012
Grant Date -
Feb 17, 2011
app pub date -
Oct 25, 2010
filing date -
Jul 13, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A hydraulic power device usable to power a compactor ram of a waste compactor is provided. The hydraulic power device includes a pump assembly having first and second pumps for providing pressurized hydraulic fluid to at least one hydraulic cylinder and piston assembly associated with the compactor ram. A battery is provided for storing energy and for providing energy to the pump assembly. A solar panel converts solar energy and charges the battery. A pump control unit simultaneously operates the pumps when an operating pressure of the pump assembly is less than a predetermined threshold and operates only the first pump when the operating pressure of the pump assembly is greater than the predetermined threshold.
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