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US 2025/0242535 A1Published application
Extruder, Extruder Screw, and Method for Extruding
AssigneeIrwin Research and Development, Inc.
InventorJere F. Irwin
Life of this patent
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Abstract
An extruder screw is provided having a screw body, a flight, and a heat transfer chamber. The screw body includes a shaft extending from an upstream end to a downstream end. The flight extends helically about the screw body. The heat transfer chamber is provided in the screw body having a thermodynamic heat sink mixture operative to transfer heat in an upstream direction of the screw. An extruder and a method of extruding are also provided.
Claims20
An extruder screw, comprising:
- a screw body comprising a shaft extending from an upstream end to a downstream end;
- a flight extending helically about the screw body;
- and
- a heat transfer chamber provided in the screw body having a thermodynamic heat sink mixture operative to transfer heat in an upstream direction of the screw.
1 more element
An extruder, comprising:
- a barrel;
- a screw body carried for rotation within the barrel comprising a shaft extending from an upstream end to a downstream end;
- a flight extending helically about the screw body;
- and
- a heat transfer chamber provided in the screw body having a thermodynamic heat sink mixture operative to transfer heat along the screw body between an upstream end and a downstream end of the heat transfer chamber.
2 more elements
A method of extruding a plastic elastomer, comprising:
- providing a barrel, a screw body supported in the barrel for rotation, a flight extending helically about the screw body, and a heat transfer chamber in the screw body;
- inserting plastic elastomer between the barrel and the screw body;
- rotating the screw body in the barrel to generate heat and melt the plastic elastomer;
- and
- temperature regulating a shaft of the screw body extending from an upstream end to a downstream end with a thermodynamic heat sink mixture provided in the screw body operative to transfer heat in an upstream direction of the screw.
2 more elements
Dependencies are inferred from the claim text.