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.

Date of Patent:
Feb. 16, 1988

Filed:

May. 06, 1986
Applicant:
Inventors:

Hiroshi Kawazoe, Osaka, JP;

Tokuhito Hamane, Osaka, JP;

Kiyotaka Sugiura, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
29606 ; 2952 / ; 29 7 / ; 29761 ; 29596 ;
Abstract

A method for fitting a ring coil in a channel formed in the inner circumference surface of a hollow cylindrical member comprises a step of deforming the ring coil by applying a force to one or more portions thereof radially outwardly. The deformation of the ring coil causes a reduction of the circumscribed circle diameter facilitating its insertion into the member. After the insertion, the deformed portions are respectively outwardly pressed so that the non-deformed portions are respectively engaged with the channel. Subsequently, the deformed coil is sequentially pressed to the bottom surface of the channel are around so that the deformed coil is returned to its original shape and the whole of the coil is perfectly fitted in the channel.


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