Plastic article or earthenware shaping or treating: apparatus – Female mold and charger to supply fluent stock under... – With means to heat or cool
Reexamination Certificate
2006-09-12
2006-09-12
Heitbrink, Tim (Department: 1722)
Plastic article or earthenware shaping or treating: apparatus
Female mold and charger to supply fluent stock under...
With means to heat or cool
C425S548000, C425S549000, C425S552000
Reexamination Certificate
active
07104782
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).
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Letter to the World Intellectual Property Organization from Otto Hofstetter AG, a Swiss Company, dated Apr. 7, 2005, 7 pages including enclosures listed in the letter.
Heitbrink Tim
Husky Injection Molding Systems Ltd.
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