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:
Jun. 26, 2012
Filed:
Sep. 15, 2008
Thurai Manik Vasagar, Hatfield, PA (US);
Thurai Manik Vasagar, Hatfield, PA (US);
Stein Seal Company, Kulpsville, PA (US);
Abstract
An intershaft seal assembly for counter-rotating and co-rotating turbine engines is described. The seal assembly includes a pair of end rings and a seal element. At least one end ring has a flange, with upper and lower surfaces, disposed along and extending from one side of the ring. The seal element includes a ring, with inner and outer radial surfaces, and a ring flange wider than the ring. The ring flange is disposed along and extends diametrically from the outer radial surface, the latter also contacting the lower surface along at least one flange. The seal element is disposed between the end rings so that the ring flange extends beyond the flanges. The invention avoids the wear and heating problems inherent to intershaft seal systems, thus allowing the seal element to be composed of a temperature resistant metal, metal alloy, or carbon graphite.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile