US Patent 7104782 Gate cooling structure in a molding stack

Patent 7104782 was granted and assigned to Husky Injection Molding Systems on September, 2006 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Husky Injection Molding Systems

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7104782

Date of Patent

September 12, 2006

Patent Application Number

10455469

Date Filed

June 5, 2003

Patent Primary Examiner

‌

Tim Heitbrink

Patent abstract

A gate insert (10, 110) for a stack assembly in an injection molding machine having a gate (16, 116) through which a melt of thermoplastics material enters a mold cavity (14, 114). The gate insert has a cooling channel (18, 118) surrounding, and substantially uniformly spaced from, the gate (16, 116). The cooling channel has an inner surface with a profile substantially parallel to the gate. The cooling channel is further defined by either a structural insert in the form of a split ring (30) or by a recess (23) in a two-piece gate insert having interconnecting surfaces (111a, 111b).