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:
Feb. 27, 2018
Filed:
Jul. 23, 2014
Dresser-rand Company, Olean, NY (US);
Andrew J. Ranz, Enfield, CT (US);
Zin Min Aye, Yangon, MM;
Celeste to, San Gabriel, CA (US);
Phoebe Degroot, Newton, MA (US);
Andrew J. Ranz, Enfield, CT (US);
Zin Min Aye, Yangon, MM;
Celeste To, San Gabriel, CA (US);
Phoebe DeGroot, Newton, MA (US);
Dresser-Rand Company, Olean, NY (US);
Abstract
An annular seal may include a seal body configured for disposing around a rotor, a plurality of grooves and a plurality of projections formed on an inner circumferential surface of the seal body, and a plurality of dams circumferentially disposed on a first surface of the seal body. The first surface may extend radially from the inner circumferential surface of the seal body. The plurality of dams may be configured to increase a pressure of a working fluid contacting the plurality of dams such that the increase in the pressure may center the annular seal about the rotor.