Pneumatic or the like valve control arrangement

Claim 1

A CONTROL VALVE COMPRISING; A VALVE HOUSING HAVING AN INTERNAL CHAMBER WITH A PAIR OF OPPOSING END FACES A CORE MOUNTED WITHIN SAID CHAMBER FOR RECIPROCATING MOVEMENT BETWEEN SAID END FACES, SPRING MEANS FOR BIASING SAID CORE AGAINST ONE OF SAID END FACES, ELECTRO-MAGNETIC MEANS FOR COUNTERACTING THE BIASING OF SAID SPRING MEANS AND FOR MOVING THE CORE AGAINST THE OTHER OF SAID ENDS FACES, PASSAGE MEANS IN EACH END OF SAID HOUSING HAVING RESPECTIVE INLETS AND OUTLETS, A BORE IN EACH END FACE INTERCONNECTING THE CHAMBER AND RESPECTIVE PASSAGE MEANS, A PAIR OF VALVE MEANS FOR CONTROLLING FLOW IN SAID PASSAGE MEANS, EACH OF SAID VALVE MEANS HAVING AN OPERATING SPINDLE PROJECTING THROUGH ONE OF SAID BORES AND INTO SAID CHAMBER WHEN THE VALVE MEANS ARE IN THE CLOSED POSITION, AND BIASING MEANS FOR EACH SAID VALVE MEANS BIASING THE VALVE MEANS TO THE CLOSED POSITION; WHEREBY THE CORE WHEN THE ELECTRO-MAGNETIC MEANS IS NOT ENERGIZED WILL CONTACT ONE OF SAID VALVE SPINDLES AND OPEN THE CORRESPONDING VALVE MEANS AGAINST THE INFLUENCE OF ITS BIASING MEANS AND WHEN ENERGIZED WILL CONTACT THE OTHER OF SAID VALVE SPINDLES AND OPEN THE CORRESPONDING VALVE MEANS AGAINST THE INFLUENCE OF ITS BIASING MEANS.