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:
Dec. 28, 2004
Filed:
Nov. 18, 2002
Yong Woo Shin, Kyunggi-do, KR;
Jusung Engineering Co., Ltd., Kyunggi-do, KR;
Abstract
A molding heater includes a first metal plate having a recess formed on one side and a flat surface formed at the other side. A groove is formed at a lower portion of the recess and a wafer is placed on the flat surface. A hot wire is inserted into the groove. A ceramic is filled in a gap between the hot wire and the groove. A second metal plate coupled with the first metal plate fills the recess while contacting with the lower portion and lateral sides of the recess. Since the hot wire is surrounded only with a single layer of the ceramic, a resistance of the heat conduction can be minimized. Accordingly, a sufficient calorific power can be obtained through the metal plates using even a small power and a short of the hot wire due to an overload can be prevented.