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:
Feb. 09, 1982
Filed:
Mar. 10, 1980
Applicant:
Inventor:
Colin A Wichall, Hampshire, GB;
Assignee:
Crane Packing Limited, Slough, GB;
Primary Examiner:
Int. Cl.
CPC ...
F16J / ; F16J / ;
U.S. Cl.
CPC ...
277 27 ; 277 85 ; 277105 ;
Abstract
A rotary face seal located about a shaft and urged into seal face contact with a stationary seat formed on a housing which contains pressurized fluid. In order to overcome distortion of the seal due to the fluid pressure, which is likely to cause wear of the seal face, the seal is subjected to a radial compressive pre-stress applied between an elastomeric, e.g. rubber, strip and a support ring.