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:
Feb. 17, 1998
Filed:
Dec. 26, 1995
Erik D Jensen, Batavia, IL (US);
Miner Enterprises, Inc., Geneva, IL (US);
Abstract
The present invention relates to an apparatus for consistently machining a side bearing component for railroad cars such that the components produced all have similar performance characteristics. The preferred method of the present invention includes the steps of: arranging a rectangular shaped spring member within a fixture such that a top surface of the spring member is disposed in a predetermined position relative to a centerline of a rotating tool capable of making a bore of predetermined diameter in said spring member; moving first and second arms along a predetermined path of movement inwardly toward and into contact with opposite sides of the spring member to sideways position the spring member in a predetermined relation relative to the centerline of the tool; holding the spring member in place under a predetermined and constant pressure after the spring member is positioned relative to the tool; and moving at least one of the fixture and the tool along a predetermined path of travel such that the bore is provided in a predetermined location on the spring member to provide the spring member with predetermined performance characteristics.