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:
Jul. 19, 2011
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 method of making a compressible elastomeric pad from a preselected polymer material includes the steps of providing a preform including a substantially solid body having a predetermined cross-section disposed normal to a central axis of the preform and a pair of axial ends, each having a substantially flat surface disposed normal to the central axis and a central socket formed within at least one substantially flat surface. Next, providing a pair of forming plates, at least one of the pair of forming plates having a raised annular ring and an axially aligned cavity provided on one surface thereof. Then, positioning the preform between the pair of forming plates and axially aligning the exterior peripheral edge of the annular ring with a peripheral edge of a respective central socket. Finally, forming the pad and removing the pad from engagement with the pair of forming plates.