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:
Jun. 22, 2021
Filed:
Nov. 05, 2017
Applicant:
Radyne Corporation, Milwaukee, WI (US);
Inventor:
Jerry G. Warner, Jackson, WI (US);
Assignee:
Radyne Corporation, Milwaukee, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 3/02 (2006.01); B21F 35/00 (2006.01); B21F 99/00 (2009.01); C21D 1/40 (2006.01); C21D 9/02 (2006.01); H05B 3/00 (2006.01);
U.S. Cl.
CPC ...
H05B 3/0004 (2013.01); B21F 35/00 (2013.01); B21F 99/00 (2013.01); C21D 1/40 (2013.01); C21D 9/02 (2013.01);
Abstract
Apparatus is provided for metallurgical heat treatment of coil springs, or similarly shaped workpieces and articles of manufacture, by electric resistance heating along the entire length of the workpiece so that the ends of the workpiece can be heat treated to the same degree and quality as the section of the workpiece between its two ends.