Injection molding apparatus with direct gas connection to...

Details Injection molding apparatus with direct gas connection to... Injection molding apparatus with direct gas connection to...

B - Operations, Transporting

29

C

18/680

B29C 45/18 (2006.01) B29C 45/20 (2006.01)

Patent

CA 2019707

ABSTRACT OF THE DISCLOSURE A valve gated gas assisted apparatus having a hollow elongated valve member. A stream of pressurized gas flows from the forward end of the valve member. The stream of gas is surrounded by pressurized melt as it flows through the gate into the cavity to form a hollow product. The pressurized gas is received through a gas supply line which is connected directly to the rear end of the valve member. The gas supply line is sufficiently flexible to allow the valve member to reciprocate continuously. In one embodiment, the gas supply line has a loop to provide additional flexability.

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