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:
Feb. 17, 1981
Filed:
Aug. 09, 1979
James J Pusateri, Cleveland, OH (US);
James R Masie, Cleveland, OH (US);
Park-Ohio Industries, Inc., Cleveland, OH (US);
Abstract
An inductor coil is provided for inductively heating a hollow automotive front wheel spindle which has axially extending outer surface areas of different radial thickness. The coil has a single loop between the terminal ends thereof defined by circumferentially extending arcuate inductor portions which are axially spaced apart and connected with one another by means of axially extending inductor portions. The arcuate inductor portions are circumferentially progressive with respect to one another in the direction from one of the terminal ends of the inductor toward the other, and each arcuate portion is associated with a different one of the axially extending surface portions of the workpiece. Each arcuate portion has a circumferential extent different from the other two. Upon energization of the inductor and rotation of the workpiece relative thereto, the axial sections of the workpiece having different radial thicknesses and diameters are inductively heated to provide a uniform depth of the heating pattern axially of the workpiece.