Patent ID: 6047728
Filing Date: 2000-04-11
Classification: G05D,Y10T

Abstract:
A pressure regulator comprising:a housing having an inlet and outlet communicating with a chamber and a seat interposed between the inlet and the outlet;a pressure responsive member disposed in the chamber between the inlet and the outlet for controlling fluid flow from the inlet to the outlet and including a spring for urging the pressure responsive member open until the fluid pressure in the chamber reaches a selectable pressure setting, said spring isolated from the chamber, said pressure responsive member further including a flexible stacked diaphragm bellows, a movable bellows plate and a seal member operatively associated with the bellows plate for selectively engaging the seat in response to the pressure in the chamber, said bellows secured to the housing at a first end and secured to the bellows plate at a second end;an adjustment member for selecting said pressure setting of the pressure responsive member, said adjustment member connected to the bellows plate through a damper having a tapered region that receives an elastomeric member to eliminate vibrations; anda return spring for urging the pressure responsive member toward the seat when the adjustment member is fully retracted, said return spring isolated from the chamber.