Apparatus and method for controlling fluid flow

Details Apparatus and method for controlling fluid flow Apparatus and method for controlling fluid flow

2005-09-27

2005-09-27

Keasel, Eric (Department: 3754)

Valves and valve actuation

Electrically actuated valve

Remote or follow-up control system for electrical actuator

C251S129070, C251S129170

Reexamination Certificate

active

06948697

ABSTRACT:
An actuator base, bobbin, and pole piece form a pocket for an armature that a flexible membrane encloses to form an armature chamber filled with an incompressible fluid. The membrane protects the armature from exposure to corrosive fluids flowing in a conduit. Conduit flow can be stopped by driving the membrane against a valve seat. Pressure from the controlled fluid in the conduit is transmitted through the membrane to the fluid within the armature chamber so that the armature does not need to counteract force applied to the membrane by the conduit fluid's pressure.

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Information Disclosure Statement issued in PCT Application PCT/US01/51098 on Aug. 13, 2002.

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