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.:

US 9624798 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 18, 2017

Filed:

Dec. 09, 2013
Applicant:

Sikorsky Aircraft Corporation, Stratford, CT (US);

Inventors:

Michael F. Mullen, Cheshire, CT (US);

Clark V. Cooper, Glastonbury, CT (US);

Adam R. Glasser, Wolcott, CT (US);

Thomas L. Sbabo, Hamden, CT (US);

Assignee:

Sikorsky Aircraft Corporation, Stratford, CT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01M 9/02 (2006.01); F16H 57/04 (2010.01); F16N 39/00 (2006.01); B64C 27/14 (2006.01);
U.S. Cl.
CPC ...
F01M 9/02 (2013.01); B64C 27/14 (2013.01); F16H 57/045 (2013.01); F16N 39/00 (2013.01); F16H 57/046 (2013.01); F16H 57/0442 (2013.01);
Abstract

A lubrication system includes an additive and a delivery system. During normal operational conditions, the lubricating oil circulating in the transmission system is collected and contained in a secondary oil reservoir to retain a quantity of the lubricating oil for use in an oil-out condition. When an oil-out condition is detected, the additive is injected and mixed with the collected lubricating oil in the secondary oil reservoir or dispersed directly into a power transmission gearbox housing to enhance the characteristics of the lubricating oil and increases the operational time period of the power transmission gearbox during an oil-out condition.


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