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:
Aug. 31, 1982
Filed:
Mar. 18, 1981
Applicant:
Inventor:
Siegfried Heiermann, Waltrop, DE;
Assignee:
Klockner-Werke AG, Duisburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277 58 ; 277-1 ; 277165 ; 2771 / ; 277125 ; 92251 ;
Abstract
A high-pressure seal having a dynamic seal ring and a static seal ring supported by a backup ring is improved upon such that support ring is a one-piece construction having sealing chambers respectively defined together with the bore wall of the cylinder with the piston recess for the dynamic and static seal rings. The seal chamber for the static seal ring is formed to induce a stretching of this ring when the high-pressure seal is assembled in place, whereby the seal between the piston and cylinder is improved as the static seal ring is stretched to provide a tight seal between the backup ring and the piston.