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, 2009
Filed:
Jul. 19, 2006
Jay Monaco, Glen Carbon, IL (US);
Bradford Johnstone, Plainfield, IL (US);
Jay Monaco, Glen Carbon, IL (US);
Bradford Johnstone, Plainfield, IL (US);
AMSTED Rail Company, Inc, Granite City, IL (US);
Abstract
A long travel constant contact side bearing for railway cars provides better handling characteristics, achieving improved tracking and curving through use of various combinations of features. The side bearing comprises a base and a generally cylindrical wall section extending upwardly from the base. A cup-shaped cap comprises a generally circular top section and a generally cylindrical wall section extending downwardly therefrom. The cap extends into the wall section of the base. At least one coil spring is provided within the base and extends to the underside of the cap. The cup shaped cap includes a centrally located cut out section with an elastomer pad fitted within the cut out section. The cup shaped cap cylindrical wall sections can be coated with a lubricant or hardening substance.