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. 24, 2023
Filed:
Apr. 11, 2022
Applicant:
John Crane Uk Ltd., Slough, GB;
Inventors:
Assignee:
JOHN CRANE UK LIMITED, Slough, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J 15/34 (2006.01); F01D 11/00 (2006.01); F04D 29/12 (2006.01);
U.S. Cl.
CPC ...
F16J 15/3404 (2013.01); F16J 15/342 (2013.01); F16J 15/3412 (2013.01); F16J 15/3484 (2013.01); F01D 11/003 (2013.01); F04D 29/122 (2013.01); F04D 29/124 (2013.01);
Abstract
A dry gas mechanical seal system configured to inhibit the emission of process gas. The mechanical seal system having tandem first and second stage seals, and a single separation gas supply subsystem configured to direct a supply of separation gas from an inlet through interfacing portions of the first stage seal into a process cavity and from the inlet through the interfacing portions of the second stage seal and out through an outlet to the atmosphere, thereby inhibiting the emission of process gas between a compressor housing and a rotating compressor shaft.