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:
Mar. 09, 1993
Filed:
Feb. 18, 1992
Applicant:
Inventor:
Michael B Gilbert, Fairmount, MN (US);
Assignee:
Harsco Corporation, Wormleysburg, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B61F / ;
U.S. Cl.
CPC ...
105167 ;
Abstract
A short wheel base bogie provides stability by using a double pivot arrangement. Wheels are mounted to walking beams on each side of the bogie. The walking beams are mounted for transverse movement relative to corresponding pivot frames. Upon the bogie getting to a curved track section, the walking beam moves transversely in order to maintain the bogie in proper gauge. The bogie is used for a rail grinder vehicle wherein rail grinders are mounted upon the pivot frames such that the rail grinders follow curves in the rails.