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. 04, 2014
Filed:
Nov. 12, 2010
Wendell R. Davis, Jr., Reno, NV (US);
Dale Robert Lundeen, Washoe Valley, NV (US);
Kay Daniel Vetter, Reno, NV (US);
Wendell R. Davis, Jr., Reno, NV (US);
Dale Robert Lundeen, Washoe Valley, NV (US);
Kay Daniel Vetter, Reno, NV (US);
Other;
Abstract
A bi-plate ball bearing is configured for horizontally mounting between a base and a chair. The ball bearing has an upper plate and a lower plate defining a ball bearing race and a tension member holding the plates together disposed through a central rotational axis of the bi-plate ball bearing. The tension member may be configured as a threaded metal tube fixed to a first one of the upper plate and the lower plate and held to a second one of the upper plate and the lower plate by a nut. The threaded metal tube defines a passage through the central rotational axis of the bi-plate ball bearing through which power and control wiring may pass. The bearing may provide a cost-effective swivel bearing for chair that includes powered electronics, for which it is desired to pass wiring from the swiveling chair into a chair base.