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:
Apr. 01, 1980
Filed:
May. 30, 1978
Applicant:
Inventor:
Francis W Stager, Stafford Springs, CT (US);
Assignee:
Litton Industrial Products, Inc., East Hartford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
251306 ; 277 26 ; 277165 ; 251173 ;
Abstract
A bidirectional butterfly valve comprising sealing means for a movable valve member in the form of a seating ring and retaining means therefor cooperatively configured to maintain bidirectional axial sealing engagement with the retaining means and radial sealing engagement with the movable valve member at normally encountered or cryogenic temperatures.