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:
Jun. 23, 1987
Filed:
Dec. 19, 1985
Applicant:
Inventors:
Harry W Mulcahy, Griffith, IN (US);
Stanley Karbowniczek, Chicago, IL (US);
Assignee:
AMSTED Industries Incorporated, Chicago, IL (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B61F / ;
U.S. Cl.
CPC ...
1052241 ; 1052181 ;
Abstract
A railway vehicle truck of the four wheel type is provided having elastomeric devices operative in shear and disposed between the side frame and wheelsets in such a manner as to reduce hunting and to permit turning of wheelsets during curving. Each elastomeric device is threadably fastened to the side frame with a central boss having an internally threaded bore engaged by a bolt and to the bearing adapter with an externally threaded stud in a manner such that the relative movement of mating surfaces is precluded.