Fluidic pulser
 A fluid telemetry system is disclosed which utilizes an improved pulsing ice. The pulser comprises a bistable fluid amplifier. Both outlets of the bistable fluid amplifier communicate tangentially with a vortex chamber. A pulse in the fluid entering the amplifier may be produced each time the fluid flow is diverted from one outlet to the other. 
The United States of America as represented by the Secretary of the Army
E F Y E Y
E21B F15C Y10T E21B Y10T
inventional inventional additional inventional additional
Allen B.
Holmes