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. 09, 1998
Filed:
Mar. 22, 1996
Applicant:
Inventor:
Sung-Kwang Byon, Seoul, KR;
Assignee:
Daewoo Electronics Co., Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
425144 ; 26432816 ; 264402 ; 264403 ; 4251744 ; 4251 / ; 425D / ; 425D / ;
Abstract
An apparatus performs induction heating or dielectric heating of a mold for an injection molding system up to a desired temperature within a short time by using high frequencies or microwaves. The electric current of high frequency generated from a high frequency generator flows through a coil embedded in the mold to induction-heat the mold by an induction phenomenon with the mold, and microwaves from a microwave generator heats the dielectric material within the mold, thereby preventing cooling of the mold when a resin fluid is injected into a cavity.