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:
Aug. 15, 1989
Filed:
Feb. 29, 1988
Applicant:
Inventors:
Noboru Hara, Aichi, JP;
Shogo Sugiyama, Aichi, JP;
Assignee:
Toyoda Gosei Co., Ltd., Nishikasugai, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
366182 ; 422133 ; 425206 ; 425543 ;
Abstract
A mixing head of an injection molding machine has an injection plunger for opening and closing a plurality of orifices and a spool plunger for opening and closing a plurality of circular passageways. The plunger and the spool are disposed parallel to each other.