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. 21, 1994
Filed:
Feb. 22, 1993
Applicant:
Inventor:
Masaharu Furutani, Kitakyushu, JP;
Assignee:
Shinko Metal Products Co., Ltd., Kitakyushu, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
318 12 ;
Abstract
A method of manufacturing a clad metal column for linear motor, wherein a core material provided with a convex-and-concave pattern consisting of many longitudinal, transverse, or slanted grooves, or the combination thereof on its peripheral surface is inserted into a pipe made of a good conductor, and said pipe is fit tight onto the peripheral surface of above-mentioned core material by the reduction of diameter of pipe by means of drawing or extrusion.