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:
Nov. 30, 1976
Filed:
Dec. 16, 1974
Applicant:
Inventor:
Kosaku Sayo, Katsuta, JA;
Assignee:
Hitachi, Ltd., , JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
335296 ; 192 / ; 29606 ;
Abstract
An exciting device for use in an electromagnetic clutch and a method for manufacturing same, in which a member having a cylindrical portion is secured to the end surface of a yoke of a doughnut or annular form to thereby provide a coil supporting portion which is open in the radial direction and has a U-shaped cross section, and then a cnductor is directly wound through the medium of an insulating material around the aforesaid cylindrical portion, after which the exposing portions of the coil formed of the conductor are insulated according to a resin-impregnating treatment or varnish immersion treatment, thereby providing an exciting device for an electromagnetic clutch.