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:
Jan. 08, 2019
Filed:
Jun. 23, 2016
Pratt & Whitney Canada Corp., Longueuil, CA;
Gilles Beauvais, Montreal, CA;
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Abstract
A bearing assembly comprises ring assemblies cooperating to form a roller volume. A single circumferential slot is in an inner circumferential surface of the inner ring assembly and in fluid communication with the roller volume through central passages in the inner ring assembly. The proximal inner ring includes proximal axial slots extending axially along a proximal portion of the inner circumferential surface, a first plurality of the proximal axial slots being in fluid communication with the roller volume, a second plurality of the proximal axial slots not in fluid communication with the roller volume. The distal inner ring includes distal axial slots extending axially along a distal portion of the inner circumferential surface from the circumferential slot to respective distal passages in fluid communication with the roller volume, wherein a circumferential spacing between adjacent proximal axial slots is equivalent to a circumferential spacing between adjacent distal axial slots.