Bushing and nozzle heating device

Details Bushing and nozzle heating device Bushing and nozzle heating device

1998-01-29

2000-12-05

Heitbrink, Jill L.

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

06155815&

ABSTRACT:
An integral heated molding device for maintaining at a controlled elevated temperature material passing through an orifice in the device, which has a heat transfer central core secured to an overlying cover and having an annular space between the central core and cover containing a resistance wire wound ceramic core embedded and compacted in heat transfer electrical insulation material, with leads connecting the wire wound core to a source of power exiting from the device remote from the orifice. The invention also includes steps for making such a heated molding nozzle or bushing device.

REFERENCES:
patent: 4010351 (1977-03-01), Williams et al.
patent: 4253011 (1981-02-01), Hinz
patent: 4492556 (1985-01-01), Crandell
patent: 4882469 (1989-11-01), Trakas
patent: 5052100 (1991-10-01), Trakas
patent: 5147663 (1992-09-01), Trakas
patent: 5180594 (1993-01-01), Trakas
patent: 5235737 (1993-08-01), Gellert
patent: 5474440 (1995-12-01), Gellert
patent: 5507636 (1996-04-01), Gellert

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