Title: Flow regulator

Abstract: A flow regulator for controlling fluid flow in regulating the operation of a fluid controlled device, such as a fork truck lift mechanism. The regulator provides a damping effect similar to that provided by a fixed orifice while concurrently providing such effect at constant speed so as to maintain the flow rate notwithstanding changes in load conditions. The flow regulator includes an improved flow stabilizing device in association with a sensing orifice structure for improved sensitivity in the response of the flow regulator to changes in pressure. The flow regulator further includes dashpot structure for damping the flow regulator piston movement both inwardly and outwardly in the flow regulating operation of the device.

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Inventors: Iwatsuki, Frank (Evanston, IL, US)

Application Number: 624556
Filing Date: 1975-10-21
Publication_date: 1977-10-04
Assignee: Gould Inc. (Cleveland, OH)
Primary Class(es): 137/504 137/514.5
Other Classes:
US Patent Ref:

2224216	Dec, 1940	Coberly	137/504.
2807279	Sep, 1957	Presnell	137/504.
2845086	Jul, 1958	Waterman et al.	137/504.
3130747	Apr, 1964	Benaway	137/504.
3155111	Nov, 1964	Presnell	137/504.
3170481	Feb, 1965	Presnell	137/504.
3424196	Jan, 1969	Donner	137/504.
3805824	Apr, 1974	Robbins	137/504.

Other Refs:
Primary Examiner: Weakley, Harold W.
Assistant Examiner:
Attorney: Wegner, Stellman, McCord, Wiles & Wood