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:
Feb. 07, 1989
Filed:
Oct. 08, 1986
Applicant:
Inventor:
Roy E Smith, Kingston, CA;
Assignee:
Urban Transportation Development Corporation, Toronto, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B61F / ;
U.S. Cl.
CPC ...
105171 ; 105165 ; 105176 ;
Abstract
An axle for a rail vehicle is pivotally connected to two equal length swinging arms, each of which is pivotally connected to the rail vehicle. The axle rotates about a virtual vertical axis away from the axle and nearer to the center of the rail vehicle. The axle is then radial for all curves over which a rail vehicle would usually traverse. In addition, the overhang of the rail vehicle while traversing a curve is reduced since the rail vehicle chords between virtual axes.