B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/702
B29C 45/20 (2006.01) B29C 45/17 (2006.01)
Patent
CA 1179465
P-302 ABSTRACT OF THE DISCLOSURE A material injection assembly of the type for injecting a resin material into a mold cavity including a body member defining a nozzle for injecting material into a mold and including at least one central channel for conveying a first material through the nozzle. The assembly is characterized by an internal purging mechanism for closing the nozzle to the mold while allowing the flow of purging material between the channel supplying resin material to the control channel and a debris channel. The purging mechanism further allows flow of purging material between a separate purging material channel and the debris channel to perform a post-purge function. A cooling system is also disclosed which provides a coolant supply channel which bifurcates into two channels about the central channel proximal to the nozzle to provide maximum cooling at the portion of the assembly closest to the mold.
407626
Morrell Company
Smart & Biggar
LandOfFree
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