Invention Grant
- Patent Title: Heat treatment of helical springs or similarly shaped articles by electric resistance heating
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Application No.: US15803800Application Date: 2017-11-05
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Publication No.: US11044788B2Publication Date: 2021-06-22
- Inventor: Jerry G. Warner
- Applicant: RADYNE CORPORATION
- Applicant Address: US WI Milwaukee
- Assignee: RADYNE CORPORATION
- Current Assignee: RADYNE CORPORATION
- Current Assignee Address: US WI Milwaukee
- Agent Philip O. Post
- Main IPC: H05B3/02
- IPC: H05B3/02 ; B21F35/00 ; B21F99/00 ; C21D1/40 ; C21D9/02 ; H05B3/00

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.
Public/Granted literature
- US20180070409A1 Heat Treatment of Helical Springs or Similarly Shaped Articles by Electric Resistance Heating Public/Granted day:2018-03-08
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