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:
Jan. 17, 1989
Filed:
Jan. 29, 1988
Isao Hattori, Nagoya, JP;
Hifuo Noiri, Gifu, JP;
NGK Insulators, Ltd., Aichi, JP;
Abstract
An extruding die structure is used for a plunger molding machine. The extruding die structure comprises an extruding die structure body detachably mounted on an extruding die mounting portion of the plunger molding machine and having an extruding die at its front end and grooves in an outer circumference for positioning and fixing the extruding die structure body to the extruding die mounting portion, keys engaging the grooves for positioning and fixing the extruding die structure body, and hydraulic cylinders as key driving means provided in the extruding die mounting portion for engaging and disengaging the keys from the grooves of the extruding die structure body. After the extruding die structure body is positioned by the positioning key, the fixing keys are engaged with the grooves to fix the extruding die structure body to the extruding die mounting portion, without requiring manual troublesome operation, shorten the time required for mounting the extruding die structure.