Fluid pressure operated eddy current brake for air driven centri

Details Fluid pressure operated eddy current brake for air driven centri Fluid pressure operated eddy current brake for air driven centri

1976-04-29

1977-07-19

Krizmanich, George H.

Chemistry: physical processes

74 546, 188164, 210146, 310105, 415123, B04B 906

Patent

active

040364283

ABSTRACT:
An improved apparatus and method for braking the rotation of a centrifuge rotor is disclosed comprising magnet means operable in a first position wherein substantially no eddy currents are induced in a rotating rotor made of electrically conductive material by the magnetic flux of the magnet means and a second position wherein eddy currents are induced into the rotating rotor sufficiently to slow the rotor. In the preferred embodiment, the magnet means is movable by fluid pressure from the second position to the first position and movable by a bias force from the first position to the second position.

REFERENCES:
patent: 2106609 (1938-01-01), Krauss
patent: 2213107 (1940-08-01), McBain
patent: 3064149 (1962-11-01), Baermann
patent: 3447006 (1969-05-01), Bair
patent: 3747841 (1973-07-01), Ross
patent: 3958753 (1976-05-01), Durland et al.

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