Triple flow control device for flow conductors

Claim 1

A FLOW CONTROL DEVICE, FOR WELL TUBING HAVING FIRST AND SECOND LATERAL PORTS COMMUNICATING WITH THE INTERIOR OF SAID TUBING, INCLUDING: AN ELONGATED HOUSING POSITIONED IN SAID TUBING AND PROVIDED WITH AN INTERNAL FLOW PASSAGE FOR COMMUNICATION AT ITS UPPER END WITH THE INTERIOR OF SAID TUBING, PROVIDED WITH A FIRST SIDE PORT INTERMEDIATE THE ENDS OF THE HOUSING FOR COMMUNICATION WITH THE EXTERIOR OF THE HOUSING AND SAID INTERNAL FLOW PASSAGE AND WITH SAID FIRST LATERAL PORT, PROVIDED WITH A SECOND SIDE PORT INTERMEDIATE THE ENDS OF THE HOUSING FOR COMMUNICATION WITH THE EXTERIOR OF THE HOUSING AND SAID INTERNAL FLOW PASSAGE AND WITH SAID SECOND LATERAL PORT, AND PROVIDED WITH A THIRD SIDE PORT ADJACENT THE LOWER END OF THE HOUSING FOR COMMUNICATION WITH THE EXTERIOR OF THE HOUSING AND SAID INTERNAL FLOW PASSAGE AND WITH THE LOWER OPEN END OF SAID TUBING; AND INNER MEMBER RELEASABLY SECURABLE TO THE UPPER END OF SAID HOUSING, SAID INNER MEMBER HAVING MEANS EXTENDING INTO SAID INTERNAL FLOW PASSAGE PROVIDING WITH SAID INTERNAL FLOW PASSAGE, WHEN THE INNER MEMBER IS SECURED TO THE HOUSING, A FIRST FLOW PASSAGE COMMUNICATING WITH SAID FIRST SIDE PORT AND OPENING UPWARDLY INTO THE TUBING ABOVE SAID FIRST LATERAL PORT, PROVIDING A SECOND FLOW PASSAGE COMMUNICATING WITH SAID SECOND SIDE PORT AND OPENING UPWARDLY INTO THE TUBING, AND PROVIDING A THIRD FLOW PASSAGE COMMUNICATING WITH SAID THIRD SIDE PORT; SEAL MEANS ON SAID HOUSING FOR SEALING BETWEEN THE TUBING AND THE HOUSING INTERMEDIATE SAID LATERAL PORTS; SEAL MEANS ON SAID HOUSING FOR SEALING BETWEEN THE TUBING AND THE HOUSING BELOW SAID SECOND LATERAL PORT; AND MEANS CARRIED BY SAID HOUSING PERMITTING FLOW IN ONE DIRECTION ONLY INTO SAID INTERNAL FLOW PASSAGE THROUGH SAID FIRST LATERAL PORT AND SAID FIRST SIDE PORT.