Goodyear Aerospace Corporation

James Richard Haney

Edgar J Ruof

An anti-skid power valve means for brake control apparatus, which valve means connects a pressure supply line to a wheel brake system, the valve means including a piston operably positioned in a chamber means, and a check valve means operably carried by the piston to cause flow of liquid from the wheel brake system to the pressure supply line when the piston is driven. Other means connect the pressure supply line to the wheel brake system and include a flow control orifice therein to permit by-pass liquid flow from the pressure supply line to the wheel brake system.

Anti-skid power valve

An improvement is provided for use in a wheeled vehicle having anti-skid circuitry associated with the wheels thereof. Fundamentally, the invention comprises a comparator connected to the anti-skid circuitry which products an output signal when anti-skid signals exceed a particular level for a predetermined period of time. The output of the comparator is operative for removing the application of the anti-skid control circuit from the anti-skid valves and for applying in its place a rudimentary anti-skid control circuit comprising a multivibrator of predetermined duty cycle. Thus, under all conditions, braking effort remains with the vehicle operator but under certain conditions is modulated at a predetermined rate by the multivibrator. Provisions are also made for returning the anti-skid system to normal operation in conjunction with the brake system when the output of the anti-skid system drops below the aforesaid particular level.

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Uniontown, OH, United States of America

James Richard Haney