Metering device and mixing apparatus

Details Metering device and mixing apparatus Metering device and mixing apparatus

1975-01-24

1976-07-20

Jenkins, Robert W.

Dispensing

Snap-acting outlet element

Axially movable tube, sleeve, or apertured cap

222218, B01F 1502

Patent

active

039702880

ABSTRACT:
The invention relates in the first instance to apparatus for dispensing granular material, for example plastics granules dosed with a coloring agent. Granular material and the coloring agent are located in supply hoppers and metering means feed predetermined metered quantities to a mixing device which supplies the dosed material to a supply hopper. The apparatus is arranged to operate when the level of dosed material in the supply hopper falls below a predetermined level, whereupon actuation of the metering means causes automatic replenishment to that level.
In a second embodiment of the invention there is provided a shroud, such that the materials are discharged within the shroud to contact a mixer blade and then fed to the injection molding machine.
The invention also contemplates a metering device including a cylinder with an opening in its wall to communicate with a measuring chamber located within the body of the cylinder. A rod passing through the back wall of the measuring chamber is connected to a head within the chamber. One end of the rod is contacted by a crank arm within the cylinder such that rotation of the cylinder causes movement of the rod head axially within the measuring chamber.

REFERENCES:
patent: 709793 (1902-09-01), McGinnity
patent: 2684186 (1954-07-01), Mattos
patent: 3353722 (1967-11-01), Mehta

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