Ball balancer for vertical rotor and centrifuge

Details Ball balancer for vertical rotor and centrifuge Ball balancer for vertical rotor and centrifuge

2006-12-29

2008-10-14

Cooley, Charles E (Department: 1797)

Imperforate bowl: centrifugal separators

Including vibration damping means

C074S572400

Reexamination Certificate

active

07435211

ABSTRACT:
Disclosed herein are a balancer which is provided with a curved portion at a balancing space so that movement of balls is accelerated at the moment a rotational speed of a rotor exceeds a resonant speed, thereby stabilizing the rotation of the rotor without vibration regardless of when the rotational speed of the rotor is less or more than the resonant speed, and a centrifuge using the above balancer. The balancer includes a body which is formed with a balancing space thereinside. The balancing space has a circular circumference, and is defined by a bottom portion, a slanted portion extending upward from the bottom portion, a curved portion formed at an end of the slanted portion, and an upper large-diameter portion extending from the curved portion. The balancer further includes a plurality of balls which are contained in the balancing space.

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