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:
Nov. 17, 1987
Filed:
Jan. 27, 1986
Applicant:
Inventor:
Harold A List, Bethlehem, PA (US);
Assignee:
Railway Engineering Associates, Inc., Bethlehem, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B61D / ;
U.S. Cl.
CPC ...
105168 ; 105176 ; 105185 ; 1052241 ;
Abstract
A self-steering railway truck having interconnected steering arms associated with the axled wheelsets and having mechanism for yieldingly resisting yawing motion of the wheelsets including at least two devices, at least one of which provides a relatively high rate of increase of resistance per unit of deflection in the initial portion of the yaw motion and at least another of which provides a relatively low rate of increase of resistance per unit of deflection in a portion of the motion beyond the initial portion.