Pressure operated regulating valve and control device

• US 3,135,281 A
• Filed: 09/17/1962
• Issued: 06/02/1964
• Est. Priority Date: 09/17/1962
• Status: Expired due to Term

• Current Assignee: Hugh M. Morgan
• Original Assignee: Hugh M. Morgan
• Inventors: Morgan, Hugh M.
• Application Number:
  US04/224,062
• Time in Patent Office: 624 Days
• US Class Current: 137/110
• CPC Class Codes: N/A

Claims

1. IN COMBINATION:

A MAIN PRESSURE OPERATED VALVE HAVING A VALVE CLOSURE MEMBER NORMALLY BIASED TO A CLOSED POSITION AND OPERABLE IN RESPONSE TO FLUID PRESSURE IN A CONTROL CHAMBER;

A CONTROL VALVE FOR CONTROLLING THE APPLICATION OF FLUID PRESSURE TO SAID CONTROL CHAMBER, SAID CONTROL VALVE INCLUDING A VALVE BODY HAVING A CHAMBER THEREIN, SAID CHAMBER HAVING A MOVABLE WALL, THE OUTSIDE OF SAID MOVABLE WALL BEING RESTRICTIVELY CONNECTED TO AN AREA OF LOW FLUID PRESSURE;

A MAIN INLET PORT, A RESTRICTED INLET PORT AND AN OUTLET PORT IN SAID CHAMBER;

MEANS ADAPTED TO CONNECT SAID INLET PORTS TO A SOURCE OF FLUID UNDER PRESSURE;

MEANS CONNECTING SAID OUTLET PORT TO THE CONTROL CHAMBER OF SAID MAIN VALVE;

VALVE MEANS IN SAID CHAMBER AND COOPERABLE WITH SAID MAIN INLET PORT TO PREVENT FLUID FLOW THERETHROUGH;

YIELDABLE MEANS BETWEEN SAID MOVABLE WALL AND SAID VALVE MEANS AND URGING SAID VALVE MEANS TOWARD SAID MAIN INLET PORT;

AND MEANS NORMALLY BIASING SAID MOVABLE WALL TO A POSITION WHEREIN SAID VALVE MEANS CLOSES SAID MAIN INLET PORT AND YIELDABLE IN RESPONSE TO FLUID PRESSURE IN SAID CHAMBER TO PERMIT MOVEMENT OF SAID MOVABLE WALL AND SAID VALVE MEANS TO OPEN SAID MAIN INLET PORT.

6. A PRESSURE OPERATED CONTROL VALVE COMPRISING A VALVE BODY HAVING A CHAMBER THEREIN, A MOVABLE WALL IN SAID CHAMBER, THE SPACE ON ONE SIDE OF SAID MOVABLE WALL BEING CONNECTED THROUGH A RESTRICTION TO AN AREA OF LOW FLUID PRESSURE;

A MAIN INLET PORT, A RESTRICTED INLET PORT, AND AN OUTLET PORT IN THE WALL OF SAID CHAMBER ON THE OTHER SIDE OF SAID MOVABLE WALL;

A PASSAGEWAY FOR CONNECTING SAID INLET PORTS TO A SOURCE OF FLUID UNDER PRESSURE;

VALVE MEANS COOPERABLE WITH SAID MAIN INLET PORT TO PREVENT FLUID FLOW THRETHROUGH;

YIELDABLE MEANS BETWEEN SAID MOVABLE WALL AND SAID VALVE MEANS AND URGING SAID VALVE MEANS TOWARD SAID MAIN INLET PORT;

AND BIASING MEANS NORMALLY BIASING SAID MOVABLE WALL TO A POSITION WHEREIN SAID VALVE MEANS CLOSES SAID MAIN INLET PORT, SAID BIASING MEANS BEING YIELDABLE IN RESPONSE TO FLUID PRESSURE IN SAID CHAMBER TO PERMIT MOVEMENT OF SAID MOVABLE WALL IN A DIRECTION TO MOVE SAID VALVE MEANS AWAY FROM SAID MAIN INLET PORT, SAID VALVE MEANS AND SAID YIELDABLE MEANS BEING CONSTRUCTED AND ARRANGED SO THAT SAID VALVE MEANS IS OPENED ONLY AFTER A PREDETERMINED AMOUNT OF SUCH MOVEMENT OF SAID MOVABLE WALL.