Agitating – Stirrer within stationary mixing chamber – Pump type
Patent
1998-10-01
2000-07-18
Cooley, Charles E.
Agitating
Stirrer within stationary mixing chamber
Pump type
3663261, 416145, 416500, 464180, B01F 1500
Patent
active
060897481
ABSTRACT:
Mixer apparatus having an impeller on a shaft, which circulates a body of liquid the surface of which can clear the impeller, especially when the liquid is in a tank, and the tank is drained, is protected against excessive by use of a flexural member, which may be in the form of radially opposed pairs of resilient plates, which extend from the shaft and are attached thereto by a collar. As the liquid surface drops below the impeller, the members present surfaces to the liquid in the tank on which forces are opposing the oscillation are developed by interaction of the surfaces with the liquid in the tank. Restoring forces on the shaft due to the flexing of the resilient plates also reduce the shaft oscillation. The stiffness of the plates is selected to optimize the restoring forces for the mixing apparatus which is stabilized.
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McDermott Keith T.
Weetman Ronald J.
Cooley Charles E.
General Signal Corporation
Lukacher K.
Lukacher M.
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