Plastic and nonmetallic article shaping or treating: processes – With measuring – testing – or inspecting
Reexamination Certificate
2007-02-27
2007-02-27
McDowell, Suzanne E. (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
With measuring, testing, or inspecting
C264S572000, C425S130000, C425S135000, C425S145000
Reexamination Certificate
active
10709390
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 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.
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Hendry James
Holmann Gregory A.
Artz & Artz P.C.
LaFontaine Earl
Lear Corporation
McDowell Suzanne E.
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