CA1034848A - Method and apparatus for hardening a helical outer surface portion of a workpiece - Google Patents

Method and apparatus for hardening a helical outer surface portion of a workpiece

Info

Publication number
CA1034848A
CA1034848A CA211,609A CA211609A CA1034848A CA 1034848 A CA1034848 A CA 1034848A CA 211609 A CA211609 A CA 211609A CA 1034848 A CA1034848 A CA 1034848A
Authority
CA
Canada
Prior art keywords
hardening
workpiece
surface portion
helical outer
helical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA211,609A
Other languages
French (fr)
Other versions
CA211609S (en
Inventor
Edward R. Fitzgerald
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Park Ohio Holdings Corp
Original Assignee
Park Ohio Industries Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Park Ohio Industries Inc filed Critical Park Ohio Industries Inc
Application granted granted Critical
Publication of CA1034848A publication Critical patent/CA1034848A/en
Expired legal-status Critical Current

Links

CA211,609A 1973-12-07 1974-10-17 Method and apparatus for hardening a helical outer surface portion of a workpiece Expired CA1034848A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US42250973A 1973-12-07 1973-12-07

Publications (1)

Publication Number Publication Date
CA1034848A true CA1034848A (en) 1978-07-18

Family

ID=23675202

Family Applications (1)

Application Number Title Priority Date Filing Date
CA211,609A Expired CA1034848A (en) 1973-12-07 1974-10-17 Method and apparatus for hardening a helical outer surface portion of a workpiece

Country Status (1)

Country Link
CA (1) CA1034848A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011091537A1 (en) * 2010-02-01 2011-08-04 Kudu Industries Inc. A system and method for induction heating a helical rotor using a coil

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011091537A1 (en) * 2010-02-01 2011-08-04 Kudu Industries Inc. A system and method for induction heating a helical rotor using a coil
US8723088B2 (en) 2010-02-01 2014-05-13 Kudu Industries Inc. System and method for induction heating a helical rotor using a coil
EP2532212A4 (en) * 2010-02-01 2014-10-22 Kudu Ind Inc A system and method for induction heating a helical rotor using a coil
US9661691B2 (en) 2010-02-01 2017-05-23 Schlumberger Lift Solutions Canada Limited System and method for induction heating a helical rotor using a coil

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