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. 27, 2004
Filed:
Jul. 05, 2001
Masaaki Tojo, Kitakasuragi-Gun, JP;
Kazuo Morioka, Katano, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A molding die has a shell having a penetration hole, a lower pattern installed in the lower opening of the shell, and an upper pattern slidably disposed from the upper opening of the shell. The shell includes an outer shell and an inner shell disposed inside of the outer shell. The inner shell is includes plural split shells. The inner shell can be separated from the outer shell. The inner shell, lower pattern, and upper pattern form a cavity. As a result, if the molded product sticks to the inner circumference of the shell, the molded product can be easily taken out of the molding die by disassembling the shell. Further, a molded product having an excellent dimensional precision can be manufactured.