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1. (WO2018022192) SIDE GATE NOZZLE ASSEMBLY WITH A WASHER MADE OF A SHAPE MEMORY ALLOY

Pub. No.:    WO/2018/022192    International Application No.:    PCT/US2017/035873
Publication Date: Fri Feb 02 00:59:59 CET 2018 International Filing Date: Tue Jun 06 01:59:59 CEST 2017
IPC: B29C 45/26
Applicants: CHRISTOPHER HEPLER, Douglas
Inventors: CHRISTOPHER HEPLER, Douglas
Title: SIDE GATE NOZZLE ASSEMBLY WITH A WASHER MADE OF A SHAPE MEMORY ALLOY
Abstract:
A side gate nozzle assembly for a hot runner apparatus comprises a disc shaped base body, a probe member, a sealing insulator, and a shape memory alloy washer. The probe member with a probe channel extends from the base body. A molten molding material is received through a melt channel of the nozzle body, and allowed to pass through the probe channel to be transferred to a cavity of a cavity member. The shape memory alloy washer is positioned between the base body and the sealing insulator. The shape memory alloy washer distorts linearly to push the sealing insulator and the probe member according to change in temperature due to the transfer of the molten molding material from the melt channel to the cavity member via the probe channel. The distorted shape memory alloy washer prevents leakage of the molten molding material from the melt channel, and the probe channel.