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. 29, 2025
Filed:
Apr. 10, 2020
Applicant:
Carrier Corporation, Palm Beach Gardens, FL (US);
Inventor:
Vishnu M. Sishtla, Manlius, NY (US);
Assignee:
Carrier Corporation, Palm Beach Gardens, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/16 (2006.01); F04D 17/12 (2006.01); F16J 15/44 (2006.01);
U.S. Cl.
CPC ...
F04D 29/162 (2013.01); F04D 17/122 (2013.01); F05B 2240/515 (2013.01); F05B 2240/57 (2013.01); F05B 2260/507 (2013.01); F16J 15/445 (2013.01);
Abstract
A seal assembly for a compressor includes at least one impeller. At least one seal land is associated with the impeller including a plurality of radially stepped surfaces. A seal is associated with each of at least one seal lands. The seal includes a plurality of radially stepped projections corresponding to the plurality of radially stepped surfaces on at least one seal land. At least one actuator is configured to move at least one seal land relative to the seal.