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:
Dec. 22, 1998
Filed:
Dec. 15, 1997
Armand P Taillon, Chicago, IL (US);
Standard Car Truck Company, Park Ridge, IL (US);
Abstract
A rail car truck damping system includes a bolster with a bolster pocket having an interior slanted wall, a side frame having a column wear resistant surface facing said pocket and a friction wedge positioned within the pocket. The wedge has a body with an area of contact facing the bolster pocket slanted wall which is formed by a pair of spaced planar generally parallel surfaces with a recess therebetween. The bolster pocket slanted wall has an elongated outward extension aligned with the wedge recess and extending therein, with the extension functioning to resist lateral movement of the wedge within the bolster pocket. The wedge body has an area of contact facing the side frame column wear resistant surface which is formed by a pair of spaced planar generally parallel surfaces with a recess therebetween. The side frame column wear resistant surface has a vertical extension aligned with the wedge recess and extending therein, with the extension restraining relative lateral movement between the bolster and the side frame.