1975-08-27
1977-07-12
Smith, Robert I.
B01F 708
Patent
active
040349675
ABSTRACT:
A mixer of the disclosure incorporates a unique rotor construction having an elongated shaft portion about which a mixing element is wound in an axially spiraling manner so as to define radial mixing lobes. The mixer includes a housing defining a mixing chamber that receives at least two of the rotors whose mixing elements are wound in the same direction with the same pitch and are arranged in a meshing relationship with each other. A gear unit of the mixer drives the rotors in the same direction at the same speed about their elongated shaft portions so the radial lobes of each rotor pass between those of the other to provide a mixing action to components received within the mixing chamber. The rotors are preferably detachably secured to the gear unit so as to be removable for cleaning. The flow of the components being mixed through the chamber is provided by supply line pressure and the rotors provide a screw action that creates a back-flow turbulence acting against this flow to aid in the mixing.
REFERENCES:
patent: 966455 (1910-08-01), Life
patent: 3064908 (1962-11-01), Hjelte
patent: 3349725 (1967-10-01), Bini
patent: 3817496 (1974-06-01), Kratochvil
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