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. 31, 2022
Filed:
May. 28, 2020
Pratt & Whitney Canada Corp., Longueuil, CA;
Guy Lefebvre, St-Bruno-de-Montarville, CA;
René Paquet, Longueuil, CA;
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Abstract
A variable guide vane (VGV) assembly, has: a casing enclosing a cavity and defining apertures distributed around a central axis; variable guide vanes (VGVs) distributed around the central axis and having an airfoil portion extending from a first end to a second end along a pivot axis, and a shaft portion pivotably received within the apertures; vane drive members secured to the shaft portions of the VGVs and located within the cavity, a unison transmission member within the cavity and rotatable about the central axis and engaged to the vane drive members, and an external mechanism secured to the second end of one of the VGVs and disposed outside the cavity, the external mechanism engageable by an actuator for rotating the one of the VGVs about its pivot axis, thereby rotating the unison transmission member, which, in turn, drives a remainder of the VGVs in rotation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile