Valve adapted to have positioned therein a corrosion measuring probe assembly

Claim 1

A VALVE ADAPTED TO HAVE POSITIONED THEREIN A CORROSION MEASURING PROBE ASSEMBLY, COMPRISING, IN COMBINATION, A HOLLOW SLEEVE MEMBER AND A HOLLOW SLEEVE INSERT MEMBER RECIPROCALLY POSITIONED IN SAID HOLLOW SLEEVE MEMBER, SAID HOLLOW SLEEVE MEMBER HAVING AN EXTERNAL CIRCUMFERENTIAL THREADED PORTION AND AN INTERNAL CIRCUMFERENTIAL THREADED PORTION AT ITS FORWARD END, SAID HOLLOW SLEEVE INSERT MEMBER BEING CLOSED AT ITS FORWARD END AND HAVING AN EXTERNAL CIRCUMFERENTIAL THREADED PORTION AT ITS FORWARD END FOR ENGAGEMENT WITH SAID INTERNAL CIRCUMFERENTIAL THREADED PORTION OF SAID HOLLOW SLEEVE MEMBER, SAID EXTERNAL CIRCUMFERENTIAL THREADED PORTION OF SAID HOLLOW SLEEVE MEMBER BEING ADAPTED FOR ATTACHMENT TO THE FLUID LINE THROUGH WHICH THE FLUID TO BE TESTED PASSES, FIRST O-RING SEALING MEANS POSITIONED IN THE OUTER SURFACE OF SAID HOLLOW SLEEVE INSERT MEMBER ADJACENT SAID EXTERNAL CIRCUMFERENTIAL THREADED PORTION THEREOF FOR EXTERTING A FLUID TIGHT BARRIER AGAINST THE INNER SURFACE OF SAID HOLLOW SLEEVE, SAID HOLLOW SLEEVE INSERT MEMBER HAVING AT LEAST ONE OPENING THROUGH THE WALL THEREOF TO THE REAR OF SAID FIRST O-RING SEALING MEANS, AND SECOND O-RING SEALING MEANS POSITIONED IN THE OUTER SURFACE OF SAID HOLLOW SLEEVE INSERT MEMBER TO THE REAR OF SAID OPENING FOR EXERTING A FLUID TIGHT BARRIER AGAINST THE INNER SURFACE OF SAID HOLLOW SLEEVE, WHEREBY IN OPENING AND CLOSING THE VALVE AT LEAST ONE OF SAID SEALING MEANS PREVENTS ESCAPE OF THE FLUID TENDING TO ESCAPE FROM BETWEEN SAID SLEEVE MEMBER AND SAID SLEEVE INSERT MEMBER AND WHEREBY SAID EXTERNAL CIRCUMFERENTIAL THREADED PORTION AND SAID SEALING MEANS AT THE FORWARD PORTION OF SAID HOLLOW SLEEVE INSERT MEMBER TOGETHER FORM A POSITIVE SEAL WHEN SAID VALVE IS IN CLOSED POSITION, SAID HOLLOW SLEEVE MEMBER AND SAID HOLLOW SLEEVE INSERT MEMBER BEING OUT OF THREADED ENGAGEMENT AND SAID FIRST O-RING SEALING MEANS BEING OUT OF SEALING ENGAGEMENT WITH SAID HOLLOW SLEEVE MEMBER WHEN SAID VALVE IS IN OPEN POSITION, WHEREBY FLUID COMMINICATION IS ESTABLISHED BETWEEN THE FLUID LINE AND SAID HOLLOW SLEEVE INSERT MEMBER THROUGH SAID OPENING.