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:
Feb. 24, 1987
Filed:
Oct. 01, 1985
Applicant:
Inventor:
Syed Z Ali, Gretna, LA (US);
Assignee:
Baker CAC, Belle Chasse, LA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K / ; F16K / ;
U.S. Cl.
CPC ...
251327 ; 251328 ; 13732902 ;
Abstract
This invention relates to an improved gate valve having floating seal elements which are back-relieving and reversible for long-term permanent sealing under varied pressure conditions. The sealing elements are mounted in unrestrained relation in juxtaposed recesses in the fluid passage facing the movable gate with annular gaskets facing both the gate and the recesses for improved self-aligning sealing engagement therewith. The sealing elements and their annular gaskets may be reversed, interchanged, or readily replaced as desired, the valve structure being especially useful for inherently fail-safe slab type gate valves.