High intensity mixer utilizing a single speed motor

Details High intensity mixer utilizing a single speed motor High intensity mixer utilizing a single speed motor

1975-11-28

1977-04-26

Hornsby, Harvey C.

B01F 700

Patent

active

040197220

ABSTRACT:
The high intensity mixer utilizing a single speed motor of this invention includes a concentric pair of vertical shafts mounted in the mixer. In one embodiment a driven pulley is directly attached to the outer shaft which mounts the lower set of mixing tools and runs whenever the motor is running. The inner shaft bears the upper mixing tool and may be coupled to the outer shaft by any appropriate manual, pneumatic, fluid, centrifugal, electro-magnetic or air operated clutch means. Engagement and disengagement of the upper mixing tool may be accomplished by manual means or automatic means. Where automatic means are used they may be coupled to sensors reading temperature, amperage or other appropriate conditions.
In an exemplary operation the inner and outer shafts are clutched together so as to drive both the upper and lower mixing blades at the outset. As the temperature and/or horsepower requirements change, the clutch is disengaged allowing the upper mixing tool to free-wheel, thereby allowing a single speed motor and drive to be used for continuation of the mixing operation.
Depending upon the materials being mixed, it is possible that the power requirements are initially such that only a single blade is required, whereafter both sets of mixing blades may be required, in which event the lower set of blades is first operated and later the upper set of mixing blades is brought into operation by effectively clutching the inner shaft to the outer shaft at that time.

REFERENCES:
patent: 1997035 (1935-04-01), Arbuckle
patent: 3630495 (1971-12-01), Carroll
patent: 3792697 (1974-02-01), Walter

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