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US 3,969,053 AGranted
Device for distributing dyestuffs or other additional materials in extruders or the like
OwnerEmile Felix Baconnier, Francois Delicheresinventors
Life of this patent
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Abstract
Device for distributing dyestuffs or other additional materials in an extruding machine, the dyestuff material being contained in a kind of removable and interchangeable cartridge that is fixed to the feed chute of the extruding machine. The cartridge is provided with means for pressing said material and a dosing member for controlling the feed of material into the machine.
Claims8
In combination with an extruding machine having a screw extruder and a chute for feeding material to said screw extruder, wherein said chute being provided with a lateral aperture;
- a device for adding an additional substance in a pulverulent state to said material, said device comprising a cylindrical cartridge container for a mass of the said additional substance;
- means at one end of said container for securing it in a removable manner to said chute in register with said aperture;
- rotatable scraping means at the same end of said container for progressively removing a portion of said mass allowing said removed portion to fall into said chute;
- means in said container including a pressure actuated piston for pushing said mass towards said scraping means;
- means for rotating said scraping means;
- and transmission means between said screw extruder and said rotating means for communicating to said scraping means a rotational movement proportional to the axial movement of the extruder screw.
3 more elements
Dependencies are inferred from the claim text.