Manually-operable fluid pressure regulating valve device

Details Manually-operable fluid pressure regulating valve device Manually-operable fluid pressure regulating valve device

G - Physics

05

D

137/55

G05D 16/08 (2006.01) G05D 16/06 (2006.01)

Patent

CA 1284609

ABSTRACT OF THE DISCLOSURE A manually-operable pressure-regulating valve device, including a special handle mechanism and a self-lapping valve assembly having a feedback piston on which delivery pressure acts to urge the valve assembly actuating stem in a direction opposite handle pressure, thereby transmitting to the operator a "feel" of the effective delivery pressure. The handle mechanism includes an elongated lever for operating the self-lapping unit with mechanical advantage to reduce operator fatigue. The elongated lever is made flexible, so that movement of the self-lapping valve assembly toward lap position, following actuation thereof, is absorbed by flexure of the elongated lever in order to, in effect, isolate the handle from the self-lapping unit in terms of movement without losing handle "feel" of the delivery pressure acting on the self-lapping valve assembly.

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