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:
Dec. 05, 2000
Filed:
Sep. 17, 1998
Jeffrey D Wurzer, Turtle Creek, PA (US);
Shawn A Opfer, Pittsburgh, PA (US);
McConway & Torley Corporation, Pittsburgh, PA (US);
Abstract
A drawbar for a slackless drawbar coupler assembly which includes a shank portion extending to a truncated butt end portion defining a convex, hemispherical buff load bearing surface adapted to abut against a concave, hemispherical buff load bearing surface on a rear support block. A generally rectangular aperture is provided through the butt end portion at the axis of said hemispherical buff load bearing surface which is adapted to receive a drawbar pivot pin and a three-dimensional bearing block, with the bearing block having a half-cylindrical surface on one side adapted to engage against a cylindrical side surface of the drawbar pivot pin, and a flat, generally rectangular surface opposite the cylindrical surface which is adapted to abut against a flat side of the rectangular aperture, to thereby bias the bearing block against the drawbar pivot pin such that the drawbar is pivotally attached to the pivot pin.