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:
Apr. 14, 2020
Filed:
Aug. 14, 2017
Applicant:
Bell Helicopter Textron Inc., Fort Worth, TX (US);
Inventors:
Brian Stanley Modrzejewski, Keller, TX (US);
Siddhesh Pradeep Raje, Fort Worth, TX (US);
Gilberto Morales, Arlington, TX (US);
Kenneth Myron Jackson, Euless, TX (US);
Assignee:
Bell Helicopter Textron Inc., Fort Worth, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H 55/06 (2006.01); F16H 1/28 (2006.01); B64C 27/12 (2006.01); F16H 57/03 (2012.01); F16H 57/032 (2012.01); F16H 57/02 (2012.01); F16H 1/36 (2006.01);
U.S. Cl.
CPC ...
F16H 55/06 (2013.01); B64C 27/12 (2013.01); F16H 1/28 (2013.01); F16H 57/03 (2013.01); F16H 57/032 (2013.01); F16H 1/36 (2013.01); F16H 2057/02043 (2013.01);
Abstract
A hybrid composite reinforced ring gear minimizing radial deformation during high RPM conditions includes a composite backing secured to a metal rim. In use, at operating temperature the composite backing contracts while the metal rim expands thus creating a compressive stress on the metal rim and significantly reduces radial deformation due to centrifugal forces as compared to an all steel ring gear.