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:
Jan. 17, 2012
Filed:
May. 01, 2008
Ronald J. Sprainis, Springfield, OR (US);
Michael E. Ring, Saint John, IN (US);
Bradley Anderson, Des Plaines, IL (US);
Jonathon Marlow, Hobart, IN (US);
Ronald J. Sprainis, Springfield, OR (US);
Michael E. Ring, Saint John, IN (US);
Bradley Anderson, Des Plaines, IL (US);
Jonathon Marlow, Hobart, IN (US);
WABTEC Holding Corp, Wilmerding, PA (US);
Abstract
A draft gear assembly for cushioning both buff and draft dynamic impact forces being applied to a center sill member of a railway vehicle includes a housing member closed at one end and open at an opposed end, the housing member having a rear portion adjacent the closed end and a front portion adjacent the open end. At least one compressible elastomeric spring is positioned within the rear portion and has a rear end thereof abutting at least a portion of an inner surface of the closed end. A friction clutch mechanism is also provided in abutting engagement with each of the front end of the compressible elastomeric spring and the coupler shank. The housing member may be provided with a pair of ledge portions disposed intermediate its ends and attachment members disposed on the open end for attaching the housing member directly to the coupler shank.