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:
Mar. 31, 1987
Filed:
Sep. 13, 1985
Applicant:
Inventors:
Jean-Claude Garrigues, Ogeu les Bains, FR;
Patrick Guiroy, Ogeu les Bains, FR;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
251306 ; 251152 ; 277180 ; 277187 ; 285350 ; 285363 ;
Abstract
The invention concerns a butterfly valve of a type wherein the elastomer sleeve lines the body bore, and has cheeks which fit into circular recesses provided in the two parallel radial faces of the valve, the shape of the cheeks and of the circular recesses being such that when the valve is assembled between flanges, the elastomer of the cheeks is pressed into a spare volume in the circular recesses and precludes any creep of the elastomer towards the core of the sleeve.