MARSHALL J BOYD
Vehicle Board in Oreland, PA
License number
Pennsylvania MV041103L
Category
Vehicle Board
Type
Vehicle Salesperson
Address
Address
Oreland, PA 19075
Professional information
Fluid Pressure Sealing Member For A Valve
US Patent:
4396199, Aug 2, 1983
Filed:
May 15, 1981
Appl. No.:
6/263814
Inventors:
Marshall J. Boyd - Oreland PA
Robert A. DiDomizio - Lansdale PA
Richard C. Hobbs - Philadelphia PA
Robert A. DiDomizio - Lansdale PA
Richard C. Hobbs - Philadelphia PA
Assignee:
Honeywell Inc. - Minneapolis MN
International Classification:
F16K 2500
US Classification:
2771675
Abstract:
A butterfly valve having a valve body and a valve disc which is selectively rotated to produce a fluid-tight engagement of a peripheral edge of the disc with an annular seal or wall defined by a portion of an internal fluid passage in the valve body uses an annular fluid pressure seal member mounted in an annular groove in the valve body adjacent to the annular seat. The seal member is a layered structure including a pair of coaxial metallic annular seal rings having aligned J-shaped inner sides arranged in a facing relationship and a resilient annular seal ring captured between the metallic rings and having a sealing surface aligned with an outside surface of the J-shaped sides. The sealing surface of the resilient seal ring and an outside surface of the J-shaped sides are arranged to produce the fluid-tight engagement with the peripheral edge of the valve disc.