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:
Feb. 25, 2014
Filed:
Jul. 03, 2008
John J. Gallen, Waterloo, IA (US);
Bradley A. Merrill, Dike, IA (US);
Brian Daniel Durbin, Waverly, IA (US);
Chad Gregory Vandenberg, Waterloo, IA (US);
John J. Gallen, Waterloo, IA (US);
Bradley A. Merrill, Dike, IA (US);
Brian Daniel Durbin, Waverly, IA (US);
Chad Gregory Vandenberg, Waterloo, IA (US);
Deere & Company, Moline, IL (US);
Abstract
A concentric cylinder drive assembly () used for the transmission of power in industrial machinery is disclosed. More specifically, a concentric drive assembly () with a hollow outer cylinder () having an internal surface with a bi-directional surface lay; an inner cylinder () having an external surface with a unidirectional surface lay oriented at a predetermined angle (φ) along the length of the cylinder; an annular channel established between the outer and inner cylinders having a predetermined gap (); and a lubrication oil that substantially fills the annular channel is presented.