Pamela H Mooney

US Patent:

20100326533, Dec 30, 2010

Filed:

Jun 26, 2009

Appl. No.:

12/492800

Inventors:

Richard J. Mooney - Salt Lake City UT, US
Pamela Mooney - Portland OR, US

International Classification:

G05D 7/03
F16K 31/128
G05D 16/16
F16K 99/00

US Classification:

137 12, 137489, 137492, 13750512, 137 1519

Abstract:

A multistage, pilot-operated pressure regulator for pressure adjustment and/or back pressure relief and/or differential pressure or flow control applications comprises a diaphragm and a plurality of plates, including a throttle plate and at least one flow control plate. In at least one embodiment, the throttle plate includes a sloped upper surface for contacting the diaphragm, and a plurality of apertures residing within a plurality of concentric rows. In addition, in at least one embodiment, at least one flow control plate is positioned downstream of the throttle plate, the at least one flow control plate including a plurality of apertures residing within a plurality of concentric rows. A method of controlling the flow of fluid in a conduit is also provided.