Inertia responsive antiskid control valve

Claim 1

A CONTROL VALVE COMPRISING A HOUSING HAVING A PAIR OF PORTS THEREIN, PISTON MEANS HAVING OPPOSED ENDS MOVABLE IN SAID HOUSING BETWEEN SAID PORTS, SAID OPPOSED ENDS HAVING DIFFERENTIAL EFFECTIVE AREAS RESPECTIVELY RESPONSIVE TO FLUID PRESSURE AT SAID PORTS, PASSAGE MEANS IN SAID PISTON MEANS THROUGH SAID OPPOSED ENDS THEREOF AND NORMALLY CONNECTING SAID PORTS IN PRESSURE FLUID COMMUNICATION, RESILIENT MEANS CAGED BETWEEN SAID OPPOSED ENDS AND ENGAGEABLE WITH SAID HOUSING, AND INERTIA RESPONSIVE MEANS MOVABLE IN SAID HOUSING FOR CONTROLLING PRESSURE FLUID COMMUNICATION BETWEEN SAID PORTS, SAID PISTON MEANS BEING MOVABLE IN A FIRST DIRECTION COMPRESSING SAID RESILIENT MEANS BETWEEN SAID HOUSING AND ONE OF SAID OPPOSED ENDS AND DISENGAGING THE OTHER OF SAID OPPOSED ENDS FROM SAID RESILIENT MEANS IN RESPONSE TO ESTABLISHED FLUID PRESSURE AT SAID PORTS ACTING ON SAID OPPOSED ENDS DIFFERENTIAL AREAS TO A STORED ENERGY POSITION, SAID INERTIA RESPONSIVE MEANS BEING MOVABLE IN RESPONSE TO A PREDETERMINED DECELERATION TO A POSITION CLOSING SAID PASSAGE MEANS AND INTERRUPTING PRESSURE FLUID COMMUNICATION BETWEEN SAID PORTS, AND SAID PISTON MEANS BEING THEREAFTER MOVABLE IN THE OPPOSITE DIRECTION IN RESPONSE TO INCREASED FLUID PRESSURE AT ONE OF SAID PORTS ACTING ON ONE OF SAID OPPOSED END AREAS AND ASSISTED BY SAID RESILIENT MEANS RELEASE OF STORED ENERGY UNTIL SAID OTHER OPPOSED END RE-ENGAGES SAID RESILIENT MEANS TO INCREASE THE FLUID PRESSURE AT THE OTHER OF SAID PORTS ACTING ON THE OTHER OF SAID OPPOSED END AREAS IN A PREDETERMINED RATIO WITH THE FLUID PRESSURE AT SAID ONE PORT ACTING ON SAID ONE OPPOSED END AREA.