an open center hydraulic system in which a pair of flow divider valves is connected in series with the system\'s hydraulic pump to create a parasitic pressure upstream of these flow valves and the feeder and separator clutches are controlled remotely by simple solenoid actuated two-position valves. The cylinders actuating the clutches are of sufficient size upon application of the minimum parasitic pressure to hold the clutches in a given position so that no center neutral position is necessary on the two-position valves.

Classifications

6 codes

IPC · International Patent Classification

Section F — Mechanical engineering; lighting; heating; weapons

F15B11/16

USPC · US Patent Classification

915/16915/32604/84604/22915/30

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2 members · 2 offices

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›IP5 & PCT — 1 members

Office	Publication	Kind	Published	Filed	Status	Title
USthis patent	US-T986004-I4	I4	4 Sep 1979	5 Sep 1978	granted	Hydraulic system for harvesting machines

›Other offices — 1 members

Office	Publication	Kind	Published	Filed	Status	Title
CA	CA-1141627-A	A	22 Feb 1983	15 May 1979	granted	Systeme hydraulique pour machines agricoles de recoltefr

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