Invention Grant
- Patent Title: Hot runner nozzle with a gate pressure equalizer
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Application No.: US15525098Application Date: 2015-11-16
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Publication No.: US10449706B2Publication Date: 2019-10-22
- Inventor: Edward Joseph Jenko
- Applicant: Husky Injection Molding Systems Ltd.
- Applicant Address: CA Bolton, Ontario
- Assignee: Husky Injection Molding Systems Ltd.
- Current Assignee: Husky Injection Molding Systems Ltd.
- Current Assignee Address: CA Bolton, Ontario
- International Application: PCT/US2015/060792 WO 20151116
- International Announcement: WO2016/081334 WO 20160526
- Main IPC: B29C45/00
- IPC: B29C45/00 ; B29C45/28 ; B29C45/27

Abstract:
A method and apparatus for equalizing gate pressure of a hot runner nozzle are disclosed. The nozzle includes a nozzle housing defining a primary melt channel, a first nozzle tip having a first secondary melt channel in fluid communication with the primary melt channel, a second nozzle tip having a second secondary melt channel in fluid communication with the primary melt channel, and a valve disposed in the primary melt channel for selectively opening and closing a downstream end of the primary melt channel to control a flow of melt to the first and second secondary melt channels. In some embodiments, the valve is configured to selectively open when a pressure of the melt reaches a threshold peak pressure. In some embodiments, the valve includes a valve stem that cooperates with the primary melt channel to block a flow of melt therefrom until the threshold peak pressure is established.
Public/Granted literature
- US20180015653A1 HOT RUNNER NOZZLE WITH A GATE PRESSURE EQUALIZER Public/Granted day:2018-01-18
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