Apparatus for retaining a heater on an injection molding nozzle

Details Apparatus for retaining a heater on an injection molding nozzle Apparatus for retaining a heater on an injection molding nozzle

2005-02-15

2005-02-15

Heitbrink, Tim (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

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

With means to heat or cool

C264S328150

Reexamination Certificate

active

06854971

ABSTRACT:
An apparatus for retaining a heater on an injection molding nozzle comprises a retaining body configured to fit around the injection molding nozzle. The retaining body has two flanges extending inward. One is configured to be received in a groove in the injection molding nozzle; the other is configured to be received in a groove in the heater. An axial slot allows the retaining body to elastically spread outward. The retaining body also has at least one aperture that receives a thermocouple. The aperture is preferably an elongated hole having an axis parallel to a longitudinal axis of the retaining body. Preferably the heater is a thick-film heater and the thermocouple is installed adjacent one on the resistive elements of the thick-film heater. When the resistive elements produce different heat levels, the thermocouple is preferably installed adjacent the resistive element that produces the greatest heat.

REFERENCES:
patent: 5360333 (1994-11-01), Schmidt
patent: 5411392 (1995-05-01), Von Buren
patent: 5973296 (1999-10-01), Juliano et al.
patent: 6305923 (2001-10-01), Godwin et al.
patent: 6341954 (2002-01-01), Godwin et al.
patent: 6530776 (2003-03-01), Pilavdzic et al.
patent: 6638053 (2003-10-01), Gellert et al.
patent: WO 01 98054 (2001-12-01), None
patent: WO 02 058907 (2002-08-01), None

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