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. 26, 2000
Filed:
Dec. 23, 1998
Suinobu Kubota, Sakaki-machi, JP;
Nissei Plastic Industrial Co., Ltd., Nagano-ken, JP;
Abstract
A disk substrate injection molding mold comprises a stationary mold half, a movable mold half capable of mated engagement with the stationary mold half and having, on a side thereof confronting the stationary mold half, a cavity for being filled with a molten material for molding a disk substrate, at least one air nozzle for blowing out into the cavity air fed through the movable mold half for peeling the molded disk substrate off the cavity, and a valve mechanism disposed between the stationary mold half and the movable mold half for selection-controlling on/off of the feed of air to the air nozzle. Since the valve mechanism is built in the mold, the volume of the flow passage from the valve mechanism to the air nozzle becomes small. As a result, the molded disk substrate is peeled off from the cavity immediately an air blow signal is sent out, thus improving the response capability of the mold. Further, because the volume of the flow passage is small, uneven peeling can be avoided, thereby improving the quality of the molded article.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile