Manually-operable fluid pressure regulating valve device

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

1985-07-01

1986-08-19

Nilson, Robert G.

Fluid handling

Self-proportioning or correlating systems

Self-controlled branched flow systems

1376275, 251238, G05D 1608

Patent

active

046063692

ABSTRACT:
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.

REFERENCES:
patent: 1314195 (1919-08-01), Jarvis
patent: 3026908 (1962-03-01), Blair
patent: 3071147 (1963-01-01), Dudzinski
patent: 3146916 (1964-09-01), Kronheim
patent: 4134418 (1979-01-01), Woodcock

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