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.

Date of Patent:
Nov. 20, 1990

Filed:

Nov. 16, 1988
Applicant:
Inventor:

Ikuo Asai, Ohbu, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
425588 ; 2643288 ; 425589 ; 425595 ; 425810 ;
Abstract

Injection molding halves for forming disks having a plurality of cavities between a stationary mold unit, in which a plurality of sprue bushings and a runner with gates for introducing molten resin into said plurality of cavities are provided, and a movable mold unit in which a plurality of punches are provided concentrically to the sprue bushings for severing a central aperture of the molded disk, and an interval mechanism for providing a predetermined interval between a stationary mold unit and stationary mold base plate to ease the removal of escaped material, and connecting structure for connecting the stationary mold unit and the stationary mold base plate by alternative rotating of a connecting rod.


Find Patent Forward Citations

Asai, Ikuo. (1990). Injection molding halves for disks (U.S. Patent No. 4971548). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4971548

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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