Gas pin for thermocouple for gas assisted injection molding

Details Gas pin for thermocouple for gas assisted injection molding Gas pin for thermocouple for gas assisted injection molding

2008-01-22

2008-01-22

McDowell, Suzanne E. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

C264S572000, C425S130000, C425S143000

Reexamination Certificate

active

07320765

ABSTRACT:
A method and system for forming an injection molded plastic part. After the injection of plastic material has started, a volume of gas from a fixed volume reservoir is introduced into the plastic material at a low pressure forming a hollow cavity. The gas is introduced into the mold by a gas pin having a temperature sensing device, such as a thermocouple, positioned on it. The introduction of this volume of gas is initiated when the temperature of the plastic material in the mold has reached a predetermined value. After the mold is filled and packed with plastic, pressurized gas is introduced into the hollow cavity forming the completed plastic part.

REFERENCES:
patent: 4923666 (1990-05-01), Yamazaki
patent: 5047183 (1991-09-01), Eckardt
patent: 5110533 (1992-05-01), Hendry
patent: 5118455 (1992-06-01), Loren
patent: 5198238 (1993-03-01), Baxi
patent: 5273417 (1993-12-01), Nelson
patent: 5284429 (1994-02-01), Schneider et al.
patent: 5635117 (1997-06-01), Fujioka et al.
patent: 5639405 (1997-06-01), Erikson
patent: 5670112 (1997-09-01), Csongor
patent: 5728325 (1998-03-01), Blankenburg
patent: 5820889 (1998-10-01), Erikson
patent: 5908641 (1999-06-01), Erikson
patent: 5939103 (1999-08-01), Erikson
patent: 6053720 (2000-04-01), Winget
patent: 6120274 (2000-09-01), Gerig et al.
patent: 6432352 (2002-08-01), Csongor
patent: 6468465 (2002-10-01), Hildebrand
patent: 6546311 (2003-04-01), Brown
patent: 2003/0206985 (2003-11-01), Gedritis et al.
patent: 4402818 (1994-08-01), None
patent: 3991547 (1994-11-01), None
patent: 69215361 (2002-08-01), None
patent: 0552684 (1993-07-01), None
patent: 0609676 (1994-08-01), None
patent: 0733456 (1996-09-01), None

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