Title: Hydraulic control system

Abstract: A hydraulic control system includes a generating circuit for providing power to a work function. A driving apparatus operates the generating circuit. A control circuit is connected to the generating circuit and the driving apparatus for permitting delivery of power to the work function when the driving apparatus is operating up to a predetermined speed. The control circuit also stops delivery of power to the work function when the driving apparatus runs above the predetermined speed.

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Inventors: Murphy, Eugene Scott (Portage, MI, US)
Stevens, Clyde Bennett (Kalamazoo, MI, US)

Application Number: 490629
Filing Date: 1974-07-22
Publication_date: 1976-02-03
Assignee: General Signal Corporation (Rochester, NY)
Primary Class(es): 60/444 60/445, 60/447, 417/24, 417/218
Other Classes:
US Patent Ref:

2888810	Jun, 1959	Hann	62/215.
3002462	Oct, 1961	Raymond	417/214.
3152445	Oct, 1964	Weisenbach	60/450.
3188971	Jun, 1965	Puryear	417/222.
3214911	Nov, 1965	Kempson	60/444.
3477225	Nov, 1969	Cryder et al.	60/450.
3660975	May, 1972	Martin et al.	60/447.
3672166	Jun, 1972	Isaac	60/447.
3785754	Jan, 1974	Miller	60/444.
3788773	Jan, 1974	Van Der Kolk	60/444.

Other Refs:
Primary Examiner: Freeh, William L.
Assistant Examiner: LaPointe, G. P.
Attorney: Huberfeld; Harold, Mednick; Jeffrey S.