Lab centrifuge with imbalance shutoff

Details Lab centrifuge with imbalance shutoff Lab centrifuge with imbalance shutoff

1994-10-13

1996-03-05

Cooley, Charles E.

Imperforate bowl: centrifugal separators

With condition responsive means

For controlling drive of driven means within bowl

494 10, 494 16, B04B 1300

Patent

active

054962544

ABSTRACT:
A lab centrifuge with a rotor carrying vessel supports and a motor with a vertical shaft driving said rotor into rotation, the stator associated with said rotor being supported by elastic supports on a centrifuge base. A shutoff device controls the motor which it shuts off in response to a signal generated by a component affixed to the stator and a component affixed to the base when the stator deviation taking place is found to exceed or match the maximum admissible threshold imbalance. One of the two components is a field generator generating a constant field and the other component is a field intensity detector connected to an analyzer which, upon limit changes in field intensity caused by the deviation, implements shutoff.

REFERENCES:
patent: 2895023 (1959-07-01), Blum
patent: 3676723 (1972-07-01), Drucker
patent: 4099667 (1978-07-01), Uchida
patent: 4214179 (1980-07-01), Jacobson et al.
patent: 4491019 (1985-01-01), Wicki et al.
patent: 4700117 (1987-10-01), Giebeler et al.
patent: 4910502 (1990-03-01), Serveau et al.
patent: 4972110 (1990-11-01), Gorodissky et al.
patent: 5160876 (1992-11-01), Niinai et al.

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