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:
Sep. 16, 1980

Filed:

Dec. 08, 1978
Applicant:
Inventors:

Shunichi Agatahama, Osaka, JP;

Akio Masaki, Kyoto, JP;

Yoshihide Bando, Kyoto, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ; H01H / ;
U.S. Cl.
CPC ...
335229 ; 335 80 ;
Abstract

A miniaturized electromagnetic device is disclosed, which is applicable to an electromagnetic relay of the flat package type. The electromagnetic device comprises a magnetic core having the configuration of the capital letter H, a coil wound round the magnetic core, and a pair of magnetic members for alternatingly forming two closed magnetic circuits in cooperation with said magnetic core, said magnetic members being formed in one-piece with the aid of connecting members of non-magnetic material, one of said magnetic members including a permanent magnet, and each tip of said magnetic member confronting the corresponding tip of said magnetic core and the clearance therebetween being changeable by the magnetic force generated therebetween as said coil is energized.


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