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:
Jul. 10, 1990
Filed:
Feb. 22, 1989
Applicant:
Inventors:
Istuo Shibata, Hiratsuka, JP;
Osamu Fukahori, Yokohama, JP;
Assignee:
JU-OH, Inc., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
219 10491 ; 219 1075 ; 219 1079 ; 4251 / ; 425549 ; 264 27 ;
Abstract
The present invention provides a induction heating coil bobbin used to heat the hot runner in an injection molding machine, the bobbin comprising a substantially cylindrical body made of a metal or alloy having its low magnetic permeability, the bobbin body having at least one slit formed therein, the slit extending on the bobbin body between the opposite ends thereof through a predetermined length.