Injection nozzle and method

US6245278A · kind A · utility

Assignee

• Husky Injection Molding Systems Ltd. · CA

Inventors

• Manfred Lausenhammer · Konz, DE
• Arnold Mai · Irrel, DE
• Udo Schwarzkopf · Trier, DE
• Ralph Gauss · Konz, DE

Key dates

• Filing date: Jun 3, 1999
• Grant date: Jun 12, 2001
• Expiry date: Jun 3, 2019

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29C2045/308
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

The injection nozzle includes a longitudinal flow channel, a plurality of angular channels extending from the longitudinal flow channel (1) in a first direction at an acute angle with respect to the longitudinal axis of the nozzle, and (2) in a second direction at an acute angle with respect to the first direction, an annular channel extending from the angular channels, and a passageway extending from the annular channel to the injection orifice, wherein the angular channels cause a swirling action in the annular channel to flush out resin from the annular channel.