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:
Jul. 09, 1985
Filed:
Feb. 23, 1983
Rudolf Muller, Merzenich, DE;
Hermann J Stolberg, Duren, DE;
Hermann Rappold & Co. GbmH, Duren, DE;
Abstract
A shut-off valve, particularly for use in a pipeline for conveying gases, includes a valve casing, a valve member mounted for movement between a valve open position and a valve closed position, and a casing seal mounted on at least one of the valve casing and the valve member for forming a seal with a sealing surface at least when the valve member is in the valve closed position. The casing seal includes a frame member having two legs extending in a direction toward the position of the sealing surface when the seal is formed. The two legs are spaced and define therebetween an open channel. The casing seal further includes a seal member formed from a substantially flat elastic strip which is deformed to include two leg portions which are positioned between and freely and elastically urged toward respective inner surfaces of the legs of the frame member and a bent portion which connects the two leg portions and which projects outwardly of the channel for sealing contact with the sealing surface.