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:
May. 07, 2013
Filed:
Aug. 18, 2010
Xiaoqiang Zeng, Albany, NY (US);
Jonathon Edward Slepski, Clifton Park, NY (US);
Tao Guo, Niskayuna, NY (US);
Joshy John, Karnataka, IN;
Sudhakar Neeli, Karnataka, IN;
Xiaoqiang Zeng, Albany, NY (US);
Jonathon Edward Slepski, Clifton Park, NY (US);
Tao Guo, Niskayuna, NY (US);
Joshy John, Karnataka, IN;
Sudhakar Neeli, Karnataka, IN;
General Electric Company, Schenectady, NY (US);
Abstract
A seal is provided for preventing axial leakage through a radial gap between a stationary structure and a rotating structure. The radial gap is defined by an inner radial surface opposing an outer radial surface across the radial gap. The seal includes at least one land disposed on one of the inner radial surface and outer radial surface. At least one first tooth and at least one second tooth project from the other of the radial surfaces. The second tooth is shorter than the first tooth. At least one of the first tooth and second tooth, is configured to extend at an angle upstream. This angle is defined between a radial surface from which the first or second tooth projects and an upstream surface of the same tooth. The angle is less than or equal to about 80 degrees.