Selectively actuated constant flow valve

Details Selectively actuated constant flow valve Selectively actuated constant flow valve

2007-09-07

2010-10-19

Hepperle, Stephen (Department: 3753)

Fluid handling

Removable valve head and seat unit

C137S495000, C137S505410

Reexamination Certificate

active

07814931

ABSTRACT:
A constant flow regulating valve of the type described in U.S. Pat. Nos. 6,026,850 and 6,209,578 includes a closure mechanism configured and arranged to override the modulating mode of the valve and to close the valve at fluid inlet pressures both below and above the valve's threshold level. The closure mechanism may be selectively deactivated to thereby allow the valve to assume its normal pressure responsive regulating functions. Embodiments of the regulating valve incorporate pressure relief devices and vent seals, with configurations suitable for incorporation into the trigger assemblies of portable sprayers.

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