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:
Oct. 28, 2003
Filed:
Jun. 06, 2002
Peter Schulte, Wuppertal, DE;
Hans-Jürgen Leissner, Remscheid, DE;
Waldemar Gezarzick, Remscheid, DE;
Elotherm GmbH, Remscheid, DE;
Abstract
This invention relates to a procedure for hardening the bearing surfaces (H ,H ,H ,H ) of a shaft or axle, in particular a crankshaft ( ) or camshaft, in which the bearing surfaces (H -H ) to be hardened are hardened sequentially with the shaft or axle turning around their longitudinal axis (L) by means of a heating and quenching device ( ), in which the distortion of the shaft or axle that arises in the area of the respective bearing surface (H ) during the course of hardening is determined, in which the shaft or axle is supported by at least one supporting device ( ) during hardening of a bearing surface (H -H ), which is placed against a previously hardened bearing surface (H ), and in which the setting of the supporting device ( ) is regulated taking into account the distortion determined for the bearing surface (H ), against which the supporting device ( ) is placed, and a device which enables hardening of crankshafts with a minimal distortion.