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. 09, 2002
Filed:
Nov. 01, 1999
Applicant:
Inventor:
Atsushi Ishikawa, Chiba, JP;
Assignee:
Sumitomo Heavy Industries, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B29C 4/577 ;
U.S. Cl.
CPC ...
B29C 4/577 ;
Abstract
A method and apparatus for controlling injection in an injection molding machine meters and controls injection shot. Injection shot is metered into a heating cylinder of the injection molding machine, and the injection shot is then injected into a mold by advancing an injection screw in an injection direction within the heating cylinder. The injection screw is then retracted within the heating cylinder.