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Title: Load responsive valve assemblies

Abstract: A load responsive fluid power multiple load control system using load responsive direction and flow control valves in combination with pump flow control responding to highest system load. Each direction flow control valve is equipped with a load responsive negative load control. The negative load responsive control of each direction control valve blocks the pump flow to the motor while controlling negative load, providing the motor inlet with fluid from the motor exhaust while maintaining a constant pressure in front of a variable flow metering land.


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Inventors: Budzich, Tadeusz (Moreland Hills, OH, US)

Application Number: 709203
Filing Date: 1976-07-27
Publication_date: 1978-05-16
Assignee:
Primary Class(es): 60/427 60/445, 91/421, 91/436, 91/446, 91/511, 137/596.1, 137/596.13
Other Classes:
US Patent Ref:
3744517Jul, 1973Budzich137/596.
3807447Apr, 1974Masuda137/596.
3984979Oct, 1976Budzich60/445.

Other Refs:
Primary Examiner: Michalsky, Gerald A.
Assistant Examiner:
Attorney: