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:
Sep. 02, 2014
Filed:
Jul. 30, 2010
Brian C. Dede, San Diego, CA (US);
David Lau, San Diego, CA (US);
David Ronald Adair, Valley Center, CA (US);
Christine Ingrid Schade, San Diego, CA (US);
Brian C. DeDe, San Diego, CA (US);
David Lau, San Diego, CA (US);
David Ronald Adair, Valley Center, CA (US);
Christine Ingrid Schade, San Diego, CA (US);
United Technologies Corporation, Hartford, CT (US);
Abstract
A drain assembly for an auxiliary power unit having a hot zone formed by a combustor case comprises a fire enclosure, a drain fitting, a discharge port and a piston seal. The fire enclosure encapsulates the hot zone of the combustor case. The drain fitting connects to the fire enclosure. The discharge port extends from the combustor case into the drain fitting. The piston seal is positioned between the drain fitting and the discharge port.