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. 29, 2002
Filed:
Jul. 13, 2000
William P. O'Donnell, Plainfield, IL (US);
Miner Enterprises, Inc., Geneva, IL (US);
Abstract
The present invention discloses a method for manufacturing an energy absorption apparatus including an elastomeric spring for a railroad car. The method involves the step of creating a predetermined wear condition in the elastomeric spring for the energy absorption apparatus preferably prior to the energy absorption apparatus being arranged in operable combination with the railroad car. A conditioning process effects permanent deformation of the elastomeric spring while maintaining the preload force developed for the energy absorption apparatus to remain at a substantially stabilized level whereby simulating a predetermined wear condition for the energy absorption apparatus.