Anti-blackout valve

Claim 1

A FLUID-FLOW CONTROLLER IN COMBINATION WITH A PRESSURIZED SUIT HAVING PRESSURAL CONSTRICTORS, COMPRISING: A CASING; FLUID INLET MEANS IN THE CASING BEING IN COMMUNICATION WITH THE CONSTRICTORS; NORMALLY CLOSED FLOW-OBTURATOR MEANS IN SAID INLET MEANS AND HAVING A PORTION EXTENDING SUBSTANTIALLY TRANSVERSELY OF SAID CASING, SAID PORTION BEING POSITIONED FOR ENGAGEMENT TO OPEN THE OBTURATOR MEANS AND ADMIT FLUID INTO THE CASING; FLUID-EXHAUST MEANS IN THE CASING; NORMALLY CLOSED FLOW-OBTURATOR MEANS IN SAID EXHAUST MEANS AND HAVING A PORTION THEREOF EXTENDING SUBSTANTIALLY TRANSVERSELY OF THE CASING IN A PLANE ABOVE THE FIRST SAID PORTION, THE SECOND SAID PORTION BEING ENGAGEABLE TO OPEN THE EXHAUST OBTURATOR MEANS; AND INERTIA OPERATED MEANS IN SAID CASING AND HAVING A PORTION EXTENDING AND MOVABLE SUBSTANTIALLY AT RIGHT ANGLES TO BOTH SAID PORTIONS OF BOTH SAID OBTURATOR MEANS, SAID PORTION OF SAID INERTIA OPERATED MEANS INCLUDING ACTUATOR MEANS FOR ENGAGING AND MOVING SAID PORTIONS ON BOTH SAID OBTURATOR MEANS, MOVEMENT OF SAID INERTIA OPERATED MEANS IN ONE DIRECTION FIRST EFFECTING OPENING OF THE FIRST SAID OBTURATOR AND EFFECTING OPENING THE SECOND SAID OBTURATOR MEANS ON MOVEMENT OF THE INERTIA OPERATED MEANS IN THE OPPOSITE DIRECTION; AND MEANS IN THE CASING SUBJECTED TO THE PRESSURE DIFFERENTIAL BETWEEN SUIT PRESSURE AND CONSTRICTOR PRESSURE FOR PRESSURALLY REACTING UPON THE ACTUATOR MEANS IN RESPONSE TO THE DIFFERENCE IN FLUID PRESSURE BETWEEN THE GENERAL SUIT PRESSURE AND THE PRESSURE AT SAID CONSTRICTORS TO EFFECT THE APPROPRIATE PRESSURE DIFFERENTIAL BETWEEN THE CONSTRICTORS AND PRESSURE-SUIT.