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. 01, 2018
Filed:
Sep. 22, 2014
Applicant:
United Technologies Corporation, Hartford, CT (US);
Inventors:
David J. Wasserman, Hamden, CT (US);
Michael G. McCaffrey, Windsor, CT (US);
Michael G. Abbott, Jupiter, FL (US);
Assignee:
United Technologies Corporation, Farmington, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 11/14 (2006.01); F01D 21/00 (2006.01); F01D 11/12 (2006.01);
U.S. Cl.
CPC ...
F01D 21/003 (2013.01); F01D 11/12 (2013.01); F05D 2250/232 (2013.01); F05D 2260/80 (2013.01); Y02T 50/672 (2013.01);
Abstract
A system includes, in one example, a shroud configured to circumscribe a plurality of rotor blades of a gas rotor engine, and at least one rub button including a head portion having a height configured to extend into a flow path region of the shroud along a central axis of the rub button that extends radially into the flow path region. The head portion includes a profile, orthogonal to the central axis, that varies according to a defined function of the height of the head portion.