Agitating – Rubber or heavy plastic working – Stirrer is through-pass screw conveyor
Patent
1977-07-07
1979-01-30
Hornsby, Harvey C.
Agitating
Rubber or heavy plastic working
Stirrer is through-pass screw conveyor
366 89, 366 90, 366 99, 366322, 366323, 425208, A21C 106, B01F 708
Patent
active
041369696
ABSTRACT:
A continuous mixer comprising at least one mixing zone formed by a Transfermix geometry in which the number of starts of the helical thread changes for each of the components along the length of said Transfermix zone in the opposite sense to the change of the cross-sectional area of helical grooves on said component, whereby when in operation a medium moves along said Transfermix zone, portions thereof are successively transferred between the grooves of facing helical threads as giver and taker and whereby grooves of larger cross-sectional area are of greater widths than grooves of small cross-sectional area; in a preferred embodiment the mixer has a driven rotor and stationary barrel, the helical threads thereon being of opposite hand and the number of starts facing one another at any cross-section of the Transfermix zone is such as to make a substantially constant product.
REFERENCES:
patent: 1904844 (1933-04-01), Royle
patent: 2744287 (1956-05-01), Parshall et al.
patent: 2765491 (1956-11-01), Magerkurth
patent: 3102716 (1963-09-01), Frenkel
patent: 3164375 (1965-01-01), Frenkel
patent: 3788614 (1974-01-01), Gregory
Frenkel C-D Aktiengesellschaft
Hornsby Harvey C.
Simone Timothy F.
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