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:
Jan. 29, 1991
Filed:
Sep. 07, 1989
Applicant:
Inventors:
Norbert Deppert, Gochsheim, DE;
Helmut Umlauf, Schweinfurt, DE;
Assignee:
Fichtel & Sachs AG, Schweinfurt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
92168 ; 9216 / ; 921711 ; 277152 ; 2771 / ;
Abstract
A cylinder-piston rod unit includes a sealing ring adjacent at least one end of the cylinder for forming a fluid-tight seal between the cylinder and the piston rod. The sealing ring includes a substantially axially extending sleeve portion and a substantially radially extending flange portion. A sealing-pressure application ring, which is subject to a circumferential tensioning force over at least the lower part of the operating temperature range of the sleeve portion, surrounds the sleeve portion and exerts a radial sealing force against the sleeve portion. The sealing ring is secured to the cylinder by the flange portion.