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:
Aug. 01, 1978
Filed:
Dec. 23, 1976
Applicant:
Inventor:
Robert P Radwill, Oak Lawn, IL (US);
Assignee:
AMSTED Industries Incorporated, Chicago, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B61F / ; B61F / ; B61F / ; B61F / ;
U.S. Cl.
CPC ...
1051 / ; 267 / ;
Abstract
A friction shoe is provided on a railway car truck to frictionally engage both the side frame column and bolster in order to control the oscillating movement of the latter. The interfaces between the friction shoe and its reaction surfaces on the side frame and bolster are arranged so that initial contact is made against surfaces adjacent the lateral ends of the shoe, thereby providing the maximum restraining moment to resist lozenging of the truck.