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. 18, 2017
Filed:
Feb. 12, 2014
Woodward, Inc., Fort Collins, CO (US);
James D. Rosplock, Roscoe, IL (US);
Christopher J. Leeson, Machesney Park, IL (US);
Woodward, Inc., Fort Collins, CO (US);
Abstract
The subject matter of this specification can be embodied in, among other things, a rotary vane actuator that includes a stator having at least one vane stop and a rotor having vanes projecting from a central shaft. The vane is adapted to contact said stop of the stator, and a high pressure chamber is defined by the stator and a first side of the vane and a low pressure chamber on a second side of the vane. The actuator further includes at least a first aperture connected to the high pressure chamber a second aperture connected to the low pressure chamber. A fluid flow passage connects the first aperture in the high pressure chamber to the second aperture in the low pressure chamber.