Shear valve and frangible fitting

Claim 1

A VALVE AND FITTING, SAID VALVE COMPRISING A HOUSING, AN ELONGATED VALVE MEMBER MOVABLY POSITIONED WITHIN A BORE IN SAID HOUSING AND HAVING OPPOSITE ENDS AND WALL MEANS INTERMEDIATE SAID ENDS, SAID HOUSING HAVING INLET AND OUTLET PORTS INTERSECTING THE VALVE BORE, SAID VALVE MEMBER POSITIONED WITHIN THE VALVE BORE TO SPAN ACROSS SAID INTERSECTING INLET AND OUTLET PORTS, A FITTING MOUNTED IN SAID INLET PORT OF SAID HOUSING, AND SAID FITTING HAVING A PASSAGEWAY THEREIN, A FRANGIBLE WALL SEALING SAID PASSAGEWAY, SAID FRANGIBLE WALL PROJECTING INTO THE VALVE BORE OF SAID HOUSING, SAID VALVE MEMBER HAVING A RECESS IN SAID WALL MEANS RECEIVING AND COMPLETELY ENCOMPASSING SAID FRANGIBLE WALL OF SAID FITTING, SAID VALVE MEMBER HAVING FLUID PASSAGE MEANS INTERMEDIATE THE ENDS THEREOF, ACTUATING MEANS ADAPTED TO IMPART MOTION TO SAID VALVE MEMBER, AND SEALING MEANS FOR SEALING SAID ACTUATING MEANS FROM FLUID WITHIN SAID VALVE HOUSING WHEREBY UPON ACTIVATION OF SAID ACTUATING MEANS SAID FRANGIBLE WALL OF SAID FITTING IS SHEARED OFF AND SAID PASSAGE MEANS REGISTERS WITH SAID INLET AND OUTLET PORTS.