Valve construction and method of making the same

Details Valve construction and method of making the same Valve construction and method of making the same

1989-11-20

1990-11-13

Rosenthal, Arnold

Valves and valve actuation

With material guide or restrictor

Movable or resilient guide or restrictor

25112905, 25112911, 251217, F16K 3104

Patent

active

049696289

ABSTRACT:
A valve construction and method of making the same are provided, the valve construction comprising a housing having an inlet and an outlet and a valve seat adapted to be interconnected to the inlet and the outlet, a movable valve member carried by the housing and being operatively associated with the valve seat to control fluid flow therethrough from the inlet to the outlet, and a stepper motor carried by the housing and being operatively interconnected to the movable valve member to move the movable valve member relative to the valve seat to control the fluid flow through the valve seat, the movable valve member comprising a flexible part for sealing closed the valve seat when the stepper motor moves the flexible part against the valve seat and a throttlling part extending beyond the flexible part and into the valve seat to throttle the fluid flow therebetween when the stepper motor has moved the flexible part away from the valve seat and the throttling part has a portion thereof disposed in the valve seat.

REFERENCES:
patent: 1538912 (1925-05-01), Taylor
patent: 3831900 (1974-08-01), Matousek et al.
patent: 4452423 (1984-06-01), Beblavi et al.
patent: 4495779 (1985-01-01), Tanaku et al.
patent: 4523435 (1985-06-01), Lord
patent: 4593881 (1986-06-01), Yoshino
patent: 4609176 (1986-09-01), Powers
patent: 4745767 (1988-05-01), Ohya et al.
patent: 4763874 (1988-08-01), Ogawa

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