Cam operated mixing valve

Claim 1

A MECHANICALLY CONTROLLED MIXING VALVE COMPRISING: A VALVE HOUSING HAVING COLD WATER AND HOT WATER SUPPLY CONNECTION; A MIXING CHAMBER WITHIN SAID HOUSING; A FLOW CONTROLLING VALVE MEMBER BETWEEN THE COLD WATER SUPPLY CONNECTION AND SAID MIXING CHAMBER; A FLOW CONTROLLING VALVE MEMBER BETWEEN THE HOT WATER SUPPLY CONNECTION AND THE MIXING CHAMBER; SAID FLOW VALVE MEMBERS BEING DISPOSED OPPOSITE EACH OTHER IN AXIAL ALIGNMENT ALONG A COMMON AXIS; A ROTATABLY AND AXIALLY ADJUSTABLE VALVE CONTROL MEMBER WITHIN SAID HOUSING, SAID VALVE CONTROL MEMBER BEING A FRUSTUM OF AN OBLIQUE CIRCULAR CONE, THE CIRCULAR TOP AND BOTTOM PLANES OF WHICH INTERSECT THE AXIS OF AXIAL ADJUSTMENT OF SAID VALVE CONTROL MEMBER, THE MINIMUM CIRCLE OF SAID VALVE CONTROL MEMBER HAVING A DIAMETER WHICH EFFECTS THE CLOSING OF BOTH FLOW CONTROLLING VALVE MEMBERS AND HAVING ITS CENTER SITUATED IN SAID AXIS, THE MAXIMUM CIRCLE HAVING A DIAMETER WHICH AFFECTS THE OPENING OF BOTH FLOW CONTROLLING VALVE MEMBERS TO THE MAXIMUM RATE OF DISCHARGE AND HAVING ITS CENTER SITUATED ECCENTRICTLY WITH RESPECT TO SAID AXIS, SAID VALVE CONTROL MEMBER BEING ADDITIONALLY PROVIDED WITH AN AXIALLY EXTENDING GROOVE WHICH IS DEEPEST AT THE MAXIMUM CIRCLE, AND BECOMES SHALLOWER TOWARDS THE MINIMUM CIRCLE, THE DEEPEST POINTS ALONG AN AXIALLY EXTENDING LINE OF SAID GROOVE BEING SITUATED IN A PLANE OF SYMMETRY DEFINED BY THE CONE AXIS AND THE AXIS OF THE AXIAL MOVEMENT OF THE VALVE CONTROL MEMBER, SAID AXIALLY EXTENDING LINE BEING PARALLEL TO THE AXIS OF AXIAL MOVEMENT OF SAID VALVE CONTROL MEMBER; AN AXIALLY EXTENDING FEELER ROD OPERATIVELY SECURED TO EACH FLOW VALVE MEMBER, THE FREE END OF EACH FEELER ROD COACTING WITH A SURFACE OF SAID VALVE CONTROL MEMBER; MEANS FOR AXIALLY DISPLACING SAID VALVE CONTROL MEMBER; AND MEANS FOR ROTATING SAID VALVE CONTROL MEMBER; SAID VALVE CONTROL MEMBER BEING INITIALLY LOCATED WITHIN SAID MIXING CHAMBER SO THAT BOTH FLOW VALVE MEMBERS ARE CLOSED WHEN SAID PLANE OF SYMMETRY COINCIDES WITH SAID COMMON AXIS OF THE TWO VALVE MEMBERS, UPON ROTATION OF SAID VALVE CONTROL MEMBER BY A PREDETERMINED ANGLE, OINE OF THE FLOW VALVE MEMBERS IS OPENED TO A PREDETERMINED RATE OF DISCHARGE AND UPON FURTHER ROTATION THEREOF SAID ONE OF SAID FLOW CONTROL VALVES IS GRADUALLY CLOSED WHILE THE OTHER OF SAID FLOW VALVES IS GRADUALLY OPENED, THE TOTAL RATE OF DISCHARGE OF THE MIXING VALVE REMAINING CONSTANT AT SAID PREDETERMINED RATE OF DISCHARGE.