Plastic and nonmetallic article shaping or treating: processes – With measuring – testing – or inspecting – Controlling fluid pressure in direct contact with molding...
Reexamination Certificate
2005-04-26
2005-04-26
McDowell, Suzanne E. (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
With measuring, testing, or inspecting
Controlling fluid pressure in direct contact with molding...
C264S506000, C264S508000, C264S536000, C264S540000, C264S571000, C425S532000, C425S534000
Reexamination Certificate
active
06884374
ABSTRACT:
A plastic hollow preform is drawn through a mold passage formed in a closed mold by applying a generally constant suction to a downstream end of a conduit having an upstream end connected to an output end of the mold passage. A flow cross section of the conduit is varied between its upstream and downstream ends so as to vary a rate at which the preform is drawn through the passage by the suction. The flow cross section is varied by displacing a valve element in the conduit between positions in which it differently blocks flow through the conduit.
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Küpper Rudolf
Müller Hubert
Willach Heinz-Hugo
Dubno Herbert
Fischer--W. Muller Blasformtechnik GmbH
McDowell Suzanne E.
Wilford Andrew
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