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:
Sep. 11, 1984
Filed:
Nov. 14, 1983
Walter Schier, Bruck an der Mur, AT;
Gerald Retschnik, Niklasdorf, AT;
Vereinigte Edelstahlwerke Aktiengesellschaft (VEW), Vienna, AT;
Abstract
The apparatus for sealing a movable member with respect to a liquid medium, especially an oscillatory movable plunger or a rotary shaft within the bore of a high pressure installation comprises an intermediate sleeve, a ring member, and a bushing which are successively arranged with respect to a pressure space or chamber and which are axially biased towards the pressure space by a pressure sleeve. On the side remote from the pressure space the ring member is provided with a recess in the shape of a truncated cone or pyramid. On the side facing the ring member the bushing is formed with a protrusion possessing a complementary truncated cone or pyramid shape. A support ring may be arranged between adjacent surfaces of the ring member and the bushing. On the side facing the intermediate sleeve the ring member has a section of reduced diameter surrounded by a biasing ring subjecting the ring member to a radial force directed towards the movable member. In a transitional region between the section of smaller diameter and the remaining portion of the ring member there may also be provided a support ring. The ring member also may have the form of a sealing collar with a V-shaped cross-section and at both end faces there are arranged support rings.