Agitating – Rubber or heavy plastic working – Stirrer is through-pass screw conveyor
Patent
1997-06-11
1999-10-05
Soohoo, Tony G.
Agitating
Rubber or heavy plastic working
Stirrer is through-pass screw conveyor
366 90, B29B 714
Patent
active
059612096
ABSTRACT:
An improved feed screw for injection molding machines has a metering section adjacent to the outlet having primary flights formed by a helical thread. The primary flights form primary channels therebetween for passage of the material. The primary channels are intersected by mixing flights formed by another helical thread having a hook shaped starting point extending from a main flight at the start of the metering section that continues in a general alignment with the primary flights. The mixing flights divide the primary channel into two secondary channels. The mixing flights include alternating oriented angular notches cut therethrough to provide passageway for the material between the two secondary channels to move in a general serpentine path.
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Royal Feed Screws, Inc.
Soohoo Tony G.
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