Multiphase matter introduction with a plasticating screw arrangement
AssigneeDynamic Mixer, Inc.
InventorsDesider G. Csongor, Edward J. Lasch, Vineet Kapila, Nick R. Schott
Life of this patent
Estimating the term…
Abstract
The present invention comprises a method for delivering a medium such as a gas, vapor or liquid into a melted plastic in a mold via an elongated screw shaft rotatably supported in a housing, the method including the steps of providing the screw shaft with a bore longitudinally therethrough from a proximal end to a distal tip end thereof, rotating the screw shaft in the housing to move plastic therethrough, and into the mold, introducing a gas, vapor or liquid into the bore, to permit the gas, vapor or liquid to be delivered through the bore, and into the molten plastic in the mold through the distal tip end of the screw shaft.
Claims10
A method for delivering a gas, vapor or liquid into a melted plastic in a mold via an elongated screw shaft rotatably supported in a housing, comprising the steps of:
- providing said screw shaft with a bore longitudinally therethrough from a proximal end to a distal tip end thereof;
- rotating said screw shaft in said housing to move plastic therethrough, and into said mold;
- introducing a gas, vapor or liquid into said bore, to permit said gas, vapor or liquid to be delivered through said bore, and into said molten plastic in said mold through said distal tip end of said screw shaft.
A method of delivering a gas, vapor or liquid into a melted plastic in a mold arranged at an end of a plasticating screw comprising the steps of:
- providing a bore through said screw from a first end thereof, through a second end thereof, to permit said gas, liquid or vapor to reach said mold with said plastic therewithin;
- attaching a jeweled orifice to said second end of said bore in said screw, to minimize the wear and variation of gas, vapor or liquid flow through said orifice during operation of said plasticating screw;
- and
- feeding said gas, liquid or vapor to said mold through said orifice in said bore.
Dependencies are inferred from the claim text.