Friction controllers

Details Friction controllers Friction controllers

1980-01-23

1982-03-09

Reger, Duane A.

Brakes

Operators

Speed-responsive

303 1, 303 95, B60T 808

Patent

active

043184596

ABSTRACT:
The invention is concerned with the rapid release of frictional force which is acting to reduce relative movement between contacting surfaces, the normal actuating means being unaffected. One application is in an anti-lock braking system in vehicles, particularly motorcycles. A sensor monitors wheel angular velocity and when this falls below a predetermined value the sensor causes ultrasonic vibrations to be applied to brake pads effectively reducing friction without release of brake operating pressure to enable resumption of normal rotation.
The invention can also be applied to friction clutches operating in either rotary or linear senses to cause release when overloading, overspeed, etc. occurs.

REFERENCES:
patent: 3614176 (1971-10-01), Holst
patent: 3630578 (1971-12-01), Kaiser
patent: 3750128 (1973-07-01), Sapir

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