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. 03, 2018
Filed:
Mar. 21, 2016
David J. Peer, Olean, NY (US);
Richard J. Wiederien, Bellevue, WA (US);
Paul Morrison Brown, Seattle, WA (US);
James M. Sorokes, Olean, NY (US);
Mark J. Kuzdzal, Allegany, NY (US);
David J. Peer, Olean, NY (US);
Richard J. Wiederien, Bellevue, WA (US);
Paul Morrison Brown, Seattle, WA (US);
James M. Sorokes, Olean, NY (US);
Mark J. Kuzdzal, Allegany, NY (US);
DRESSER-RAND COMPANY, Olean, NY (US);
Abstract
A balance piston seal assembly for a balance piston of a compressor is provided. The balance piston seal assembly may include a balance piston seal, a stationary support, and a gripping assembly disposed between the balance piston seal and the stationary support. The balance piston seal may be configured to be disposed about the balance piston such that an inner radial surface of the balance piston seal and an outer radial surface of the balance piston define a radial clearance therebetween. The stationary support may be configured to be coupled or integral with a casing of the compressor. The gripping assembly may be configured to secure the balance piston seal with the stationary support and to maintain concentricity between the balance piston seal and the balance piston during thermal radial expansion of the balance piston seal relative to the balance piston.