Zone valve

Claim 1

A FLUID CONTROL VALVE COMPRISING: (A) A VALVE BODY HAVING AN INLET AND AN OUTLET AND A PORT COMMUNICATING SAID INLET WITH SAID OUTLET, (B) A SHAFT JOURNALED FOR ROTARY MOVEMENT WITHIN SAID BODY HAVING A VALVE DISC MOUNTED THEREON AND ROTATABLE THEREWITH AND OVERLYING SAID PORT, (C) AN APERTURE IN SAID DISC POSITIONABLE IN REGISTRY WITH SAID PORT TO PERMIT MAXIMUM FLUID FLOW THROUGH SAID VALVE, WHEREBY ROTATION OF SAID DISC TO MOVE SAID APERTURE OUT OF REGISTRY WITH SAID PORT WILL DECREASE THE FLOW OF FLUID THROUGH SAID VALVE, (D) A RADIALLY EXTENDING LEVER CONNECTED TO SAID SHAFT FOR ROTATION THEREWITH, (E) A RECTILINEARLY MOVABLE ELEMENT PIVOTALLY CONNECTED TO A FREE END OF SAID LEVER, WHEREBY RECTILINEAR MOVEMENT OF SAID ELEMENT WILL EFFECT ROTARY MOVEMENT OF SAID SHAFT, (F) A MOTOR MOUNTED ON SAID BODY AND HAVING AN ELEMENT EXTENSIBLE THEREFROM UPON ENERGIZING THEREOF WHERE SAID EXTENSIBLE ELEMENT ABUTS SAID RECTILINEARLY MOVABLE ELEMENT WHEREBY MOVEMENT OF THE SAID EXTENSIBLE ELEMENT IMPARTS RECTILINEAR MOVEMENT TO THE SAID RECTILINEARLY MOVABLE ELEMENT, (G) AN ELECTRIC SWITCH HAVING A PLURALITY OF CONTACTS AND A SWITCH FINGER WHEREBY MOVEMENT OF THE SWITCH FINGER OPENS AND CLOSES THE SAID CONTACTS, (H) AN ADJUSTABLE MECHANICAL LINKAGE BETWEEN THE SAID SWITCH FINGER AND THE SAID LEVER WHEREBY EXTENSIBLE AND RECTRACTABLE MOVEMENT OF THE SAID EXTENSIBLE ELEMENT IMPARTS MOVEMENT TO THE SAID SWITCH FINGER THROUGH COOPERATION OF THE SAID RECTILINEARLY MOVABLE ELEMENT, THE SAID LEVER, AND THE SAID MECHANICAL LINKAGE, AND (I) AN ELECTRIC CIRCUIT COMPRISING THE SAID MOTOR AND A PAIR OF CONTACTS OF THE SAID ELECTRIC SWITCH AND CONNECTED TO AN ELECTRIC POWER SOURCE, WHEREBY CURRENT FLOW IN THE ELECTRIC CIRCUIT ENERGIZES THE MOTOR CAUSIN THE SAID EXTENSIBLE ELEMENT TO EXTEND AND WHEREBY THE ELECTRIC SWITCH CONTROLS THE CURRENT FLOW IN SAID CIRCUIT IN RESPONSE TO EXTENSION OF THE SAID EXTENSIBLE ELEMENT.