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:
Jun. 10, 1986
Filed:
Jun. 27, 1985
Applicant:
Inventors:
Rene Laulhe, Oloron Sainte Marie, FR;
Jean-Claude Garrigues, Ogeu les Bains, FR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ; F16K / ; F16K / ;
U.S. Cl.
CPC ...
277 12 ; 277151 ; 2772 / ; 251306 ; 251314 ;
Abstract
A sealing device for providing the upstream/downstream sealing of a valve comprising a valving member movable inside the bore of a tubular body and comprising at its periphery a sealing surface coming to bear on a sealing packing mounted in the body at the end of the valving stroke. This sealing packing comprises a dynamic annular sealing element and a coronal metal membrane, whose outer edge portion has flat radial part applied axially against a steep side of a shoulder in the bore of the body, for providing static sealing therewith.