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:
Jul. 04, 2023
Filed:
Jun. 15, 2022
Applicant:
John Crane Uk Limited, Slough, GB;
Inventors:
Inderpal Singh Sihra, Windsor, GB;
Isaac Lopez Higuera, London, GB;
Aidan James Nicholls, Reading, GB;
Assignee:
JOHN CRANE UK LIMITED, Slough, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/12 (2006.01); F16J 15/34 (2006.01);
U.S. Cl.
CPC ...
F04D 29/124 (2013.01); F16J 15/3404 (2013.01);
Abstract
A seal includes a mating ring that rotates relative to a carbon primary ring at a seal interface. A buffer gas is provided into the seal and passes from the back of the primary ring to the seal interface. The seal can be used as a separation seal or in combination with another seal.