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:
Jan. 20, 1981
Filed:
Apr. 25, 1978
Karl-Heinz Eulenfeld, Berg.-Gladbach, DE;
Waggon Union GmbH, , DE;
Abstract
A bearing socket for the pin connection of trucks to the body of rail vehicles comprises an upwardly opening cup-shaped lower part having a pivot pin receiving bore for the path of the pivot pin. An upwardly opening cup-shaped insert of resilient material is disposed within the lower part and has an annular side wall and a bottom wall with approximately the same thickness throughout. An upwardly opening cup-shaped upper part is disposed within the insert and both the insert and the upper part have bores for accommodating the pivot pin. The lower part advantageously has a hub portion and the insert is cut away and has a bead-shaped protuberance formed around the cut away portion surrounding the hub of the lower part. The outer walls of both the insert and the upper and lower parts are conically formed and shaped so that they interengage. The insert is prestressed and fixed between the upper and lower parts so that it absorbs the rotary motion of the bearing by elastic deformation without any sliding between the insert and the upper and lower parts.