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. 15, 1986
Filed:
Jul. 29, 1985
Ralph A Vogel, Three Rivers, MI (US);
Keith E Caudill, Fort Wayne, IN (US);
Essex Group, Inc., Fort Wayne, IN (US);
Abstract
A method and an apparatus for determining the eventual elongation property of a copper wire which has been cold drawn with an intermediate anneal and which is to be subsequently subjected to a predetermined heat treatment by a final in-line continuous anneal. Before a sample length of such wire is elongated to its breaking point in a tensile testing device, a capacitor is discharged through the wire length to produce a heating current flow therethrough of a magnitude and duration that produces a heat treatment of the wire length which approximately simulates that which would be the result of the final in-line continuous anneal. For this purpose, the wire holding devices of the tensile testing device have contact means to establish connection of the wire length in a discharge circuit for the capacitor.