Multi-port flow-control valve

Claim 1

A FLOW-CONTROL VALVE COMPRISING: (A) A HOUSING INCLUDING AN ANNULAR CASING AND A CLOSURE MEMBER SEALINGLY MOUNTED ON EACH END OF SAID CASING TO FORM A FLUID-RECEIVING CHAMBER THEREIN, SAID CASING INCLUDING A PLURALITY OF CIRCUMFERENTIALLY SPACED PORTS EXTENDING THERETHROUGH, EACH OF SAID PORTS COMMUNICATING WITH SAID CHAMBER, (B) A SEALING MEMBER MOUNTED WITHIN SAID CASING, SAID SEALING MEMBER HAVING TWO ANGULARLY DISPOSED LEGS, ONE OF SAID LEGS BEING MOUNTED IN SEALING RELATIONSHIP WITH SAID CASING BETWEEN A FIRST ONE OF SAID PORTS AND A SECOND ONE OF SAID PORTS, THE OTHER OF SAID LEGS BEING MOUNTED IN SEALING RELATIONSHIP WITH SAID CASING BETWEEN SAID FIRST ONE OF SAID PORTS AND A THIRD ONE OF SAID PORTS, EACH OF SAID LEGS HAVING AN APERTURE THERETHROUGH TO PROVIDE A SEALING FRAME AND TO PROVIDE FLUID-FLOW COMMUNICATION BETWEEN SAID FIRST ONE OF SAID PORTS AND SAID SECOND AND THIRD ONES OF SAID PORTS, RESPECTIVELY, AND (C) A VALVE MEMBER INCLUDING (1) A ROTATABLE SHAFT CONCENTRICALLY MOUNTED WITHIN SAID CASING AND SEALINGLY ENGAGING EACH OF SAID LEGS, AND (11) A VANE DRIVINGLY ATTACHED TO SAID SHAFT AND EXTENDING DIAMETRICALLY ACROSS SAID CHAMBER, THE TIPS OF SAID VANE BEING ADJACENT SAID CASING, SAID VALVE MEMBER BEING PIVOTABLE BETWEEN (AA) A FIRST POSITION WHEREIN SAID VANE SEALINGLY ABUTS SAID ONE OF SAID LEGS TO INTERRUPT SAID COMMUNICATION BETWEEN SAID FIRST AND SAID SECOND ONES OF SAID PORTS, AND (BB) A SECOND POSITION WHEREIN SAID VANE SEALINGLY ABUTS SAID OTHER OF SAID LEGS TO INTERRUPT SAID COMMUNICATION BETWEEN SAID FIRST AND SAID THIRD ONES OF SAID PORTS.