Air driven centrifuge having a tachometer

Details Air driven centrifuge having a tachometer Air driven centrifuge having a tachometer

1980-05-29

1982-03-30

McCarthy, Edward J.

Chemistry: physical processes

233 23A, B01D 2126, B04B 900

Patent

active

043220290

ABSTRACT:
In accordance with the present invention, there is provided an air driven centrifuge including a rotor housing having an access door in which there is mounted the illuminating and sensing elements of a photo-optical tachometer with the elements so constructed and arranged that they are positioned over the rotor when the door is in a closed position. There is also provided a rotor cover having at least a portion of its surface conditioned to alternately absorb and reflect incident light, and digital display means to display the rotor speed in R.P.M.

REFERENCES:
patent: 3456875 (1969-07-01), Hein
patent: 3958753 (1976-05-01), Durland
patent: 4036428 (1977-07-01), Durland
patent: 4046316 (1977-09-01), Hein
patent: 4046317 (1977-09-01), Hein
patent: 4078719 (1978-03-01), Durland
patent: 4244513 (1981-01-01), Fayer

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