Thermostatic steam trap apparatus

Claim 1

AN IMPROVED THERMOSTATIC TRAP ASSEMBLY FOR SEPARATING LIQUIDS FROM VAPORS AND NON-CONDENSIBLE GASES FROM VAPORS FOR PROLONGED PERIODS AT ELEVATED PRESSURES OF 600 P.S.I. AND ABOVE SAID ASSEMBLY COMPRISING IN COMBINATION AN ELONGATED HOLLOW CASING MEMBER HAVING STRUCTURE DEFINING AN INLET PORTION AND AN OUTLET PORTION, SAID MEMBER CONSTRUCTED AND ARRANGED TO BE MOUNTED IN SERIES WITH A CONDUIT, SAID ASSEMBLY FURTHER COMPRISING A FRAME MEMBER CONSTRUCTED AND ARRANGED TO BE MOUNTED WITHIN SAID CASING MEMBER, RELEASABLE MEANS FOR RIGIDLY CONNECTING AND POSITIVELY SECURING SAID FRAME MEMBER TO SAID CASING MEMBER IN A POSITION INTERMEDIATE SAID INLET AND OUTLET PORTIONS, A VALVE SEAT ELEMENT MOUNTED ON SAID FRAME MEMBER, A MOVABLE VALVE ELEMENT MOUNTED ON SAID FRAME MEMBER POSITIONED AND ALIGNED FOR OPERATIVE ENGAGEMENT WITH SAID VALVE SEAT ELEMENT, A HEAT RESPONSIVE EXPANSIBLE BELLOWS UNIT MOUNTED ON SAID FRAME MEMBER OPERATIVELY CONNECTED TO SAID VALVE ELEMENT TO ACTUATE THE SAME BETWEEN OPEN AND CLOSED POSITIONS RELATIVE TO SAID VALVE SEAT ELEMENT, SAID FRAME MEMBER AND ELEMENTS MOUNTED THEREON INDEPENDENTLY REMOVABLE AS A UNIT FROM SAID CASING MEMBER FOR CALIBRATION AND ADJUSTMENT WHILE SEPARATE FROM SAID CASING, AND SAID OUTLET PORTION OF SAID CASING MEMBER PROVIDED WITH STRUCTURE DEFINING A RESTRICTED ORIFICE CONSTRUCTED AND ARRANGED TO SIGNIFICANTLY REDUCE THE PRESSURE DROP ACROSS THE VALVE ELEMENTS, REDUCE EROSION OF SAID ELEMENTS, AND REDUCE THE CLOSING FORCES ON SAID VALVE ELEMENTS DURING FLOW OF A FLUID THROUGH SAID CASING MEMBER UNDER THE HIGH PRESSURE OPERATING CONDITIONS.