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.:

US 7677875 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 16, 2010

Filed:

Sep. 10, 2008
Applicant:

Akio Yamada, Kakogawa, JP;

Inventor:

Akio Yamada, Kakogawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 45/77 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method for controlling measurement in a motor-driven in-line screw type injection molding machine using servo-motors as a measurement driving source and an injection driving source. Control is made so that all of a measured value of back pressure controlled by the measurement servo-motor, a measured value of an astern speed of a screw controlled by the injection servo-motor, and a measured rotational speed of the screw turn zero concurrently at timing when the screw reaches a measurement completion position. Thus, suck-back can be made dispensable.


Find Patent Forward Citations

Yamada, Akio. (2010). Injection molding machine for controlling measurement of an in-line screw (U.S. Patent No. 7677875). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7677875

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