Self-closing valve

Claim 1

A SELF-CLOSING VALVE CONSTRUCTION OF THE TYPE ACTUATED BY THE ROTARY DISPLACEMENT OF A VALVE HANDLE TO CONTROL FLUID FLOW FROM A VALVE PORT COMPRISING: A STATIONARY HOUSING, INCLUDING A SPRING CHAMBER, HAVING A BORE HOLE THERETHROUGH, A VALVE STEM POSITIONED WITHIN SAID BORE HOLE AND EXTENDING OUTWARDLY OF THE REAR OF SAID HOUSING, SAID VALVE STEM HAVING A HEAD PORTION AT THE INNER FORWARD END THEREOF, SPRING MEANS POSITIONED WITHIN SAID CHAMBER AND ENGAGING A REAR SURFACE OF SAID HEAD TO URGE SAID HEAD FORWARDLY OF SAID CHAMBER TOWARDS SAID VALVE PORT, STOP MEANS COMPRISING A SHOULDER WITHIN SAID SPRING CHAMBER FOR ENGAGING THE REAR SURFACE OF SAID HEAD TO LIMIT THE MOVEMENT OF SAID VALVE STEM AWAY FROM THE VALVE PORT, A PLURALITY OF OUTWARDLY EXTENDING CAM SURFACES FORMED ON THE REAR PORTION OF SAID HOUSING, SAID CAM SURFACES BEING RADIALLY SPACED WITH RESPECT TO THE AXIS OF SAID BORE HOLE; MEANS FOR CONNECTING SAID VALVE HANDLE TO THE PORTION OF SAID VALVE STEM EXTENDING OUTWARDLY OF SAID HOUSING, AND A BALL ASSOCIATED WITH EACH OF SAID CAM SURFACES INTERPOSED BETWEEN THE VALVE HANDLE AND SAID CAM SURFACES TO PERMIT ROTARY AND LONGITUDINAL DISPLACEMENT OF THE VALVE STEM ON ACTUATION OF SAID HANDLE THEREBY MOVING THE HEAD PORTION OF SAID STEM AWAY FROM SAID VALVE PORT IN OPPOSITION TO THE FORCE EXERTED BY SAID SPRING, THE RELATIVE POSITIONS OF THE HEAD AND THE VALVE PORT CONTROLLING THE FLUID FLOW FROM SAID PORT, SAID VALVE HANDLE BEING PROVIDED WITH INDIVIDUAL RECESSES HAVING SUBSTANTIALLY THE SAME DIAMETER AS SAID BALLS AND RECEIVING EACH OF SAID BALLS, EACH RECESS ACCURATELY POSITIONING ITS ASSOCIATED BALL DURING ACTUATION OF SAID VALVE HANDLE, SAID RECESSES BEING RADIALLY SPACED WITH RESPECT TO THE AXIS OF THE PORTION OF SAID VALVE STEM CONNECTED TO SAID HANDLE AND HAVING CONFIGURATIONS WHICH ARE CYLINDRICAL AT THE TOP PORTION CONFIGURATIONS WHICH ARE CYLINDRICAL SQUARE RIDGES ON THE SURFACE OF SAID HANDLE THEREBY PREVENTING EACH BALL FROM LEAVING ITS RECESS DURING ROTATION OF SAID VALVE HANDLE.