The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 31, 1978
Filed:
Jan. 07, 1976
Applicant:
Inventors:
George A Moran, Jr, Houston, TX (US);
Willard J Sitton, Houston, TX (US);
Assignee:
ACF Industries, Incorporated, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
13724622 ; 251174 ; 251360 ; 267152 ; 267166 ;
Abstract
A spherical plug valve has an annular seat pocket in its body around a flow passageway. A seat ring is positioned in the seat pocket and includes inner and outer annular concentric seat members with a resilient seal ring secured between the concentric seat members. The concentric seat members are secured together by rivets after the seal ring is positioned therebetween. A separate resilient seat urging member in the seat pocket behind the seat ring urges the seal into engagement with the adjacent face of the spherical valve and includes a metal spring encapsulated in an elastomeric material.