Vapor separator and filter for compressed air

Claim 1

A VAPOR SEPARATOR AND FILTER FOR COMPRESSED AIR COMPRISING A HOUSING ADAPTED TO BE MOUNTED IN UPRIGHT POSITION, AND HAVING AN INLET FOR UNTREATED HIGHLY PRESSURIZED AIR, SAID HOUSING HAVING ALSO AN OUTLET FOR TREATED AIR IN THE UPPER PORTION OF THE HOUSING, AND HAVING A DUMP OUTOUTLET, THE UPPER END OF SAID FIRST VALVE MEMBER BEING FOR LIMITED MOVEMENT FOR OPENING AND CLOSING THE DUMP OUTLET, THE UPPER END OF SAID FIRST VALVE MEMBER BEING SHIELDED FROM THE HOUSING AIR PRESSURE AND BEING VENTED TO ATMOSPHERE, A SHOULDER FACING TOWARD THE DUMP OUTLET AND ACTING ON THE FIRST VALUE MEMBER, SAID SHOULDER BEING EXPOSED TO AIR PESSURE WITHIN THE HOUSING, A SECOND VALVE MEMBER RIDING ON THE FIRST VALUE MEMBER FOR MOVEMENT THEREWITH, THE TOP OF THE SECOND VALUE MEMBER BEING OF SMALLER EFFECTIVE AREA THAN SAID SHOULDER, AN ENCLOSURE OVER THE SECOND VALVE MEMBER, SAID ENCLOSURE COMMUNICATING WITH PRESSURIZED AIR THROUGH A SMALL PASSAGE, SAID ENCLOSURE BEING SEALED FROM ATMOSPHERE WITH THE VALVE MEMBER IN DUMP OUTLET CLOSING POSITION AND BEING VENTED TO ATOMSPHERE WITH THE VALVE MEMBERS IN DUMP OUTLET OPENING POSITION, AND SPRING MEANS URGING BOTH VALVE MEMBERS TOWARD DUMP OUTLET CLOSING POSITION, WHEREBY, WHEN THE AIR PRESSURE ACTING ON THE EXPOSED VALVE SHOULDER OVERCOMES THE COMBINED AIR AND SPRING PRESSURE ON THE SECOND VALVE MEMBER, BOTH VALVE MEMBERS ARE MOVED THEREBY TO DUMP VALVE OPENING POSITION TO DISCHARGE THROUGH THE DUM OUTLET PRESSURIZED AIR FROM THE HOUSING TOGETHER WITH ANY LIQUID COLLECTED IN THE BOTTOM OF THE HOUSING, THRERBY VENTING TO ATMOSPHERE BOTH THE VALVE SHOULDER AND THE ENCLOSURE OVER THE SECOND VALVE MEMBER AND ALLOWING THE SPRING MEANS TO GAIN MOVE BOTH VALVE TO THEIR DUMP OUTLET CLOSING CONDIDTION.