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:
Aug. 26, 2014
Filed:
Jun. 20, 2011
Applicants:
Michael R. Blewett, Stillman Valley, IL (US);
Keith E. Short, Rockford, IL (US);
Inventors:
Michael R. Blewett, Stillman Valley, IL (US);
Keith E. Short, Rockford, IL (US);
Assignee:
Hamilton Sundstrand Corporation, Windsor Locks, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H 57/04 (2010.01); F02C 6/00 (2006.01); F03B 11/00 (2006.01); F04D 29/44 (2006.01);
U.S. Cl.
CPC ...
Abstract
A gearbox includes an outer housing including manual rotation access passage and a manual rotation shaft coupled to a spool of an engine to rotate the engine spool. The gearbox also includes coupled to the outer housing that includes a flapper valve that, in a closed position, prevents a lubricant from escaping from the outer housing via the manual rotation access passage.