Injection molding probe with a longitudinal thermocouple bore an

Details Injection molding probe with a longitudinal thermocouple bore an Injection molding probe with a longitudinal thermocouple bore an

1991-03-27

1992-06-16

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

219421, 26432815, 425568, 425570, B29C 4520

Patent

active

051220504

ABSTRACT:
An elongated probe which extends into the melt passage in an injection molding system. The probe has an integral electrical heating element which extends longitudinally from a terminal near the rear end. The probe also has a longitudinal bore which extends beside the heating element to receive a thermocouple wire to monitor the temperature near the forward end of the probe. The heating element extends off center in the body of the probe which provides the body of the probe with the combination of a minimum outer diameter and sufficient thickness between and around the heating element and the thermocouple bore. A forward portion of the probe has a number of outwardly projecting locating fins. The thermocouple wire bends to extend radially outwardly through a groove at the rear end and is retained in place by a retaining screw received in a threaded bore. A ground wire extends in through a hole in a rim portion around the threaded bore and is also clamped in position by the retaining screw.

REFERENCES:
patent: 4161386 (1979-07-01), Osuna-Diaz
patent: 4611394 (1986-09-01), Gellert
patent: 4712995 (1987-12-01), Basnett
patent: 4768283 (1988-09-01), Gellert
patent: 4810184 (1989-03-01), Gellert et al.
patent: 4837925 (1989-06-01), Gellert

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