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. 14, 1995
Filed:
Apr. 14, 1993
Philip J Mazziotti, Toledo, OH (US);
The Zeller Corporation, Defiance, OH (US);
Abstract
A lubrication system is set forth for a universal joint. A cross of the universal joint has four trunnions extending therefrom along two mutually perpendicular lines. Bearing cups are rotatably received on the ends of the trunnions and the cups, in turn, are held by universal joint yokes. Lubrication passages extend from a central portion of the cross outwardly to cavities located at the ends of the trunnions. A passage extension extends substantially through each cavity from the lubrication passage toward the end of the trunnion. A lubricant retainer is of generally inverted U-shaped configuration and extends over the passage extension. The retainer has openings near the bottom of the cavity and is centered in the cavity by a flange on the passage extension or by an outer flange at the edge of the retainer. The retainer prevents air from being trapped in the bottom of the cavity so that the cavity will always be filled with lubricant.