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. 05, 1999
Filed:
Oct. 02, 1997
Christopher Edward Wolfe, Niskayuna, NY (US);
Bharat Sampathkumar Bagepalli, Niskayuna, NY (US);
Norman Arnold Turnquist, Cobleskill, NY (US);
Robert Harold Cromer, Fulton, NY (US);
Minyoung Lee, Niskayuna, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
A brush seal which, among other applications, may be used for sealing a steam leakage gap between the shrouded free end of steam-turbine buckets (blades) of a steam-turbine rotor and a circumferentially surrounding steam-turbine stator. In a first embodiment, the brush seal includes first and second bristle packets having, respectively, first and second bristles, wherein the second bristles are more abrasive than the first bristles. In a second embodiment, the brush seal includes a bristle packet having bristles which are more abrasive proximate their free ends than not proximate their free ends.