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. 21, 2013
Filed:
Jun. 23, 2011
Applicants:
Michael E. Mehrer, San Diego, CA (US);
André M. Ajami, Spring Valley, CA (US);
Inventors:
Michael E. Mehrer, San Diego, CA (US);
André M. Ajami, Spring Valley, CA (US);
Assignee:
Pratt & Whitney, East Hartford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B 21/00 (2006.01); F16K 21/18 (2006.01); G01F 23/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of indicating low oil level of lubrication oil for a gas turbine engine automatically eliminates false low oil readings due to temperature-induced lubrication oil shrinkage and operation-induced changes in lubrication oil level.