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. 04, 1992
Filed:
Jul. 24, 1989
Applicant:
Inventor:
Amrat Parmar, Linton, GB;
Assignee:
Crane Packing Limited, , GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277 26 ; 277 / ; 277 96 ;
Abstract
A rotary mechanical face seal includes first and second seal face members, the sealing face of one seal face member being urged into engagement with the sealing face of the other seal face member, said seal face members being such that when subjected to temperature gradients due to the generation of heat at the sealing faces, the sealing faces will remain substantially parallel in spite of any thermal distortion of the seal face members.