Brakes – Operators – Speed-responsive
Patent
1988-11-01
1990-04-10
Reger, Duane A.
Brakes
Operators
Speed-responsive
384448, B60T 1722
Patent
active
049151991
ABSTRACT:
A sensor rotor unit mounted on a rotary member and cooperating with a sensor to detect the number of rotations of the rotary member includes at least a sensor rotor formed of a magnetic material and having a plurality of concavities and convexities provided at intervals in the circumferential direction thereof, and an annular rust preventing member made integral with the sensor rotor so as to surround the peripheral surface and end surface of the sensor rotor which are opposed to the rotary member.
REFERENCES:
patent: 3473120 (1969-10-01), Ruof
patent: 3541368 (1970-11-01), Jones et al.
patent: 3658901 (1972-03-01), Burckhardt et al.
patent: 3887046 (1975-06-01), Bueler
patent: 4795278 (1989-01-01), Hayashi
Nippon Seiko Kabushiki Kaisha
Reger Duane A.
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