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:
Oct. 19, 1993
Filed:
Aug. 06, 1992
Applicant:
Inventors:
James F Gardner, Exeter, RI (US);
John Short, North Scituate, RI (US);
Amitava Datta, East Greenwich, RI (US);
Assignee:
EG&G Sealol, Inc., Providence, RI (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277 15 ; 277 22 ; 277 74 ; 277 / ;
Abstract
A dry-running gas seal includes a stationery seal ring carrier holding a stationary seal ring, a rotary seal ring carrier holding a rotary seal ring facing the stationary seal ring, scoops radially outside and extending toward the rotary seal ring carrier, and a heat exchanger in fluid communication with the scoops, whereby the portion of the gas is trapped by the scoops and transferred to and cooled by the heat exchanger and returned to and the high pressure area adjacent to the seal.