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:
Apr. 08, 1980
Filed:
Jan. 09, 1978
James M Herring, Jr, Merion Station, PA (US);
George Mekosh, Jr, Warrington, PA (US);
The Budd Company, Troy, MI (US);
Abstract
A bolster for carrying a car body rests transversely on a pair of side frames of a truck. A side bearer and wear plate assembly are disposed between the ends of the bolster and the side frames to permit the bolster to be rotated relatively about small angles with respect to the side frames. The side bearers each comprise a body having relatively low friction surfaces in engagement with the wear plates. Each of the low friction surfaces may include two or more parallel arcuate tracks or segments which may have radii corresponding to the directions of angular rotation movements of the bolster. The total surface area of the low friction surfaces is designed for optimum operation for predetermined load conditions.