US Patent 7125233 Injection molding apparatus

Patent 7125233 was granted and assigned to Sumitomo Heavy Industries on October, 2006 by the United States Patent and Trademark Office.

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Patent

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Current Assignee

Sumitomo Heavy Industries

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7125233

Date of Patent

October 24, 2006

Patent Application Number

10766486

Date Filed

January 29, 2004

Patent Primary Examiner

‌

Tim Heitbrink

Patent abstract

An injection apparatus includes an injection frame, a stator attached to the injection frame, a rotor disposed radially inward of the stator to be rotatable relative to the stator, and a ball screw disposed radially inward of the rotor. The rotor includes a hollow and cylindrical member disposed radially outward of the ball screw, and a magnet attached to an outer circumference of the hollow and cylindrical member.

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