Injection holding heated nozzle with protective tubes

Details Injection holding heated nozzle with protective tubes Injection holding heated nozzle with protective tubes

1994-09-26

1996-04-16

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

With means to heat or cool

26432815, B29C 4520

Patent

active

055076360

ABSTRACT:
An injection molding nozzle with a collar having two segments mounted around the rear end of an elongated central body having a hollow central core. A helical portion of an electrical heating element is cast in a copper alloy conductive portion around the central core. The heating element has a pair of lead portions which extend outwardly through the collar into a ceramic insulative connector. The lead portions extend in stainless steel protective tubes having inner ends rigidly cast in the copper alloy conductive portion over which the insulative connector is mounted.

REFERENCES:
patent: 5235737 (1993-08-01), Gellert
patent: 5266023 (1993-11-01), Renwick

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