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. 16, 2024
Filed:
Aug. 13, 2020
Applicant:
John Crane Uk Limited, Slough, GB;
Inventors:
Assignee:
JOHN CRANE UK LIMITED, Slough, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/12 (2006.01); F16J 15/34 (2006.01); F16J 15/40 (2006.01);
U.S. Cl.
CPC ...
F04D 29/124 (2013.01); F16J 15/34 (2013.01); F16J 15/40 (2013.01); F05D 2240/55 (2013.01);
Abstract
A dry gas seal includes a mating ring that can be coupled a the rotating shaft to rotate with the rotating shaft, a retainer ring that can be fixedly attached to the compressor and a carrier ring moveably coupled to the retainer ring. The carrier ring including a primary ring carrying face, a rear face and a sealing surface extending between the primary ring carrying face and the rear face. The sealing surface including an oleophobic coating disposed thereon.