Extruder die for the extrusion of thermoplastified synthetic res

Details Extruder die for the extrusion of thermoplastified synthetic res Extruder die for the extrusion of thermoplastified synthetic res

1992-02-25

1993-10-19

Chiesa, Richard L.

Plastic article or earthenware shaping or treating: apparatus

Shaping orifice and downstream work contacting gaseous...

425141, 425381, 425466, B29C 4722, B29C 4792

Patent

active

052539920

ABSTRACT:
An extrusion die for extruding a thermoplastified synthetic resin, e.g. for a foil-blowing head or a wide-slit nozzle can have its adjustable lip positioned to vary the thickness of the extruded strand by a driver acting on a rod engaging that lip and driven by a step-down transmission from a servomotor which may be a stepping motor.

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patent: 4944666 (1990-07-01), Hilke et al.
patent: 5110518 (1992-05-01), Halter

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