FLUID CONTROL APPARATUS

• US 3,446,227 A
• Filed: 02/06/1964
• Issued: 05/27/1969
• Est. Priority Date: 02/06/1964
• Status: Expired due to Term

• Current Assignee: ITT Corporation (ITT, Inc.)
• Original Assignee: Richard D. Grayson
• Inventors: Grayson, Richard D.
• Application Number:
  US04/343,056
• Time in Patent Office: 1,937 Days
• US Class Current: 137/66
• CPC Class Codes: F23N 1/00 Regulating fuel supply
• CPC Class Codes: F23N 5/00 Systems for controlling combustion regulating fuel supply F23N1/00, regulating air supply or draught F23N3/00
• CPC Class Codes: Y10T 137/1516 Thermo-electric
• CPC Class Codes: Y10T 137/5109 Convertible
• CPC Class Codes: Y10T 137/7825 Rectilinear valve stem rigid with reactor surface
• CPC Class Codes: Y10T 137/86509 Sequentially progressive opening or closing of plural ports

Claims

3. IN A CONTROL OF THE CHARACTER DESCRIBED, A CASING HAVING A GAS INLET, A MAIN GAS OUTLET AND A PILOT OUTLET;

A VALVE STRUCTURE CONTROLLING GAS FLOW FROM SAID INLET TO SAID OUTLETS;

SAID VALVE STRUCTURE INCLUDING;

A FLAT APERTURED VALVE SEAT IN COMMUNICATION WITH SAID INLET;

A FLAT ROTATABLE VALVE ELEMENT ON SAID SEAT AND INCORPORATING MEANS, IN A FIRST POSITION THEREOF, FOR PREVENTING GAS FLOW TO SAID OUTLETS AND INCORPORATING MEANS, IN A SECOND POSITION THEREOF, TO COMMUNICATE SAID INLET TO SAID PILOT GAS OUTLET AND INCORPORATING MEANS, IN A THIRD POSITION THEREOF TO COMMUNICATE SAID INLET TO SAID MAIN GAS OUTLET;

KNOB MEANS MOUNTED ON SAID CASING FOR BOTH ROTATABLE AND AXIAL MOVEMENT THEREON, FIRST RESILIENT MEANS ACTING BETWEEN SAID VALVE ELEMENT AND SAID KNOB MEANS TO NORMALLY URGE SAID VALVE ELEMENT AGAINST SAID SEAT;

AN OPERATING CONNECTION BETWEEN SAID KNOB MEANS AND SAID FLAT VALVE ELEMENT FOR ROTATING THE SAME;

AN ELECTROMAGNETICALLY MAINTAINABLE SAFETY VALVE IN THE FLUID FLOW PATH BETWEEN SAID INLET AND SAID OUTLETS COMPRISING;

AN ELECTROMAGNETIC STRUCTURE MOUNTED ON SAID CASING;

A SAFETY VALVE SEAT IN SAID CASING;

A MOVABLE VALVE MEMBER;

SECOND RESILIENT MEANS URGING SAID VALVE MEMBER TO NORMALLY ENGAGE SAID SAFETY VALVE SEAT TO CLOSE SAID SAFETY VALVE;

AN OPERATING ELEMENT BETWEEN SAID KNOB MEANS AND SAID MOVABLE VALVE MEMBER TO MOVE IT FROM ITS SEAT UPON INWARD MOVEMENT OF SAID KNOB MEANS;

SAID CASING INCLUDING TWO SEPARABLE SECTIONS WITH SAID FLAT VALVE SEAT BEING COPLANAR WITH THE OUTER SURFACE OF ONE OF SAID CASING SECTIONS;

SAID ONE CASING SECTION HAVING A SECOND VALVE SEAT COPLANAR WITH SAID FIRST VALVE SEAT;

A DIAPHRAGM VALVE MEMBER COPERATING WITH SAID SECOND SEAT FOR CONTROLLING FLOW BETWEEN SAID VALVE STRUCTURE AND MAIN OUTLET AND HAVING ONE SIDE COMMUNICATION WITH SAID FLOW PATH AT THE OUTLET OF SAID VALVE STRUCTURE AND HAVING THE OTHER SIDE THEREOF, DEFINING ONE WALL OF AN EXPANSIBLE CHAMBER IN THE OTHER OF SAID CASING SECTIONS;

AND MEANS FOR ALTERNATELY INTERCOMMUNICATING SAID CHAMBERR WITH THE FLUID FLOW PATH AT THE OUTLET SIDE OF SAID VALVE STRUCTURE OR FOR VENTING SAID CHAMBER.