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:
Jul. 09, 2019
Filed:
Aug. 24, 2017
Applicants:
James D. Rosplock, Roscoe, IL (US);
Douglas P. Smith, Roscoe, IL (US);
Inventors:
James D. Rosplock, Roscoe, IL (US);
Douglas P. Smith, Roscoe, IL (US);
Assignee:
Woodward, Inc., Fort Collins, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B 15/12 (2006.01); F01C 19/08 (2006.01); F16J 15/54 (2006.01);
U.S. Cl.
CPC ...
F01C 19/08 (2013.01); F15B 15/12 (2013.01); F16J 15/545 (2013.01);
Abstract
Embodiments of the present invention describe the arrangement of bearings in actuators. In particular, the bearings are fit into a surface of the actuation member instead of into the housing for the actuation member. In an exemplary embodiment of a rotary vane actuator, the bearings are fit into the axial surfaces of the vane actuation member instead of in the floor and rotor cap of the housing. In this way, the problem of an axial bearing working loose and grinding a leak path into the actuation member is addressed.