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. 16, 2004
Filed:
Jan. 23, 2004
Applicant:
Inventor:
Robert Lee Bullock, Loudon, TN (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B61F 1/500 ;
U.S. Cl.
CPC ...
B61F 1/500 ;
Abstract
Yaw stabilization device provides a light-weight mechanism for increasing the linear yaw stiffness levels between the side frame and bolster to provide the proper inter-axle shear stiffness without affecting the compliancy required of the vertical suspension system. This invention, which fails to increase the unsprung weight of a railroad car truck assembly noticeably, may be retrofitted to existing freight car trucks in service or incorporated into newly manufactured trucks. Moreover, it does so without the need for damping wedges to increase interaxle shear stiffness and allow the wedges to function optimally for control of vertical vibrations.