Automatic drain valves

Claim 1

A DEVICE WITHIN A COMPRESSED AIR LINE FOR REMOVING WATER THEREFROM, SAID DEVICE INCLUDING A RECEPTACLE THROUGH WHICH THE AIR FLOWS, SAID RECEPTACLE HAVING MEANS FOR SEPARATING THE WATER FROM THE AIR AND RETAINING THE SAME, A WATER OUTLET FROM THE RECEPTACLE TO ATMOSPHERE, AUTOMATIC MEANS WITHIN THE OUTLET CONTROLLING THE DISCHARGE THERETHROUGH, SAID AUTOMATIC MEANS INCLUDING A TUBULAR ELEMENT FIXED IN SAID OUTLET, AND HAVING RADIAL PASSAGES FOR THE DISCHARGE FROM SAID RECEPTACLE, A FLANGE ON THE TUBULAR ELEMENT FORMING A PISTON, A SLEEVE VALVE ENCIRCLING THE PISTON AND TUBULAR ELEMENT AND RECIPROCABLE OF BOTH TO OPEN AND CLOSE SAID RADIAL PASSAGES, A CLOSURE MOVABLE OF THE TUBULAR ELEMENT ABOVE THE PISTON AND FITTING WITHIN THE UPPER END OF THE SLEEVE VALVE FORMING AN EXPANSIBLE CHAMBER THEREBETWEEN, THE UPPER END OF THE TUBULAR ELEMENT HAVING A RESTRICTED PASSAGE FOR THE ADMISSION OF AIR FROM THE RECEPTACLE INTO THE ELEMENT, RADIAL PASSAGES WITHIN THE TUBULAR ELEMENT ADMITTING AIR FROM THE ELEMENT INTO THE CHAMBER, A FLOAT RECIPROCABLE OF THE TUBULAR ELEMENT UPON THE RISE AND FALL OF WATER WITHIN THE RECEPTACLE, A VALVE AT THE UPPER END OF THE TUBULAR ELEMENT AND OPERATIVE BY THE FLOAT TO CLOSE THE UPPER END OF THE TUBULAR ELEMENT WHEN THE FLOAT IS AT ITS LOWERMOST POSITION, MEANS WITHIN THE TUBULAR ELEMENT FOR THE CONTINUOUS ESCAPE OF AIR FROM THE ELEMENT AND CHAMBER TO ATMOSPHERE AT A RATE LESS THAN THAT ENTERING ITS UPPER END AND THEREBY EFFECT THE GRADUAL CLOSING OF THE SLEEVE VALVE, SAID FLOAT AND VALVE MOVABLE UPON THE RISE OF COLLECTED WATER ADMITTING AIR INTO THE ELEMENT AND CHAMBER CAUSING THE UPWARD MOVEMENT OF THE SLEEVE VALVE AND THE OPENING OF THE RADIAL PASSAGES FOR THE DISCHARGE OF COLLECTED WATER, AND EXPANSIBLE MEANS BETWEEN THE PISTON AND VALVE EXERTING AN ADDITIONAL FORCE TO THE CLOSING OF THE SLEEVE VALVE UPON THE GRADUAL ESCAPE OF AIR FROM THE CHAMBER TO ATMOSPHERE.

Claim 2

A DEVICE WITHIN A COMPRESSED AIR LINE FOR REMOVING WATER THEREFROM, SAID DEVICE INCLUDING A RECEPTACLE THROUGH WHICH THE AIR FLOWS, SAID RECEPTACLE HAVING MEANS FOR SEPARATING THE WATER FROM THE AIR AND RETAINING THE SAME, A WATER OUTLET FROM THE RECEPTACLE TO ATMOSPHERE, AUTOMATIC MEANS WITHIN THE OUTLET CONTROLLING THE DISCHARGE THERETHROUGH, SAID AUTOMATIC MEANS INCLUDING A TUBULAR ELEMENT FIXED IN SAID OUTLET, AND HAVING RADIAL PASSAGES FOR THE DISCHARGE FROM SAID RECEPTACLE, A FLANGE ON THE TUBULAR ELEMENT FORMING A PISTON, A SLEEVE VALVE ENCIRCLING THE PISTON AND TUBULAR ELEMENT AND RECIPROCABLE OF BOTH TO OPEN AND CLOSE SAID RADIAL PASSAGES, A CLOSURE MOVABLE OF THE TUBULAR ELEMENT ABOVE THE PISTON AND FITTING WITHIN THE UPPER END OF THE SLEEVE VALVE FORMING AN EXPANSIBLE CHAMBER THEREBETWEEN, THE UPPER END OF THE TUBULAR ELEMENT HAVING A RESTRICTED PASSAGE FOR THE ADMISSION OF AIR FROM THE RECEPTACLE INTO THE ELEMENT, RADIAL PASSAGES WITHIN THE TUBULAR ELEMENT ADMITTING AIR FROM THE ELEMENT INTO THE CHAMBER, A FLOAT RECIPROCABLE OF THE TUBULAR ELEMENT UPON THE RISE AND FALL OF WATER WITHIN THE RECEPTACLE, A VALVE AT THE UPPER END OF THE TUBULAR ELEMENT AND OPERATIVE BY THE FLOAT TO CLOSE THE UPPER END OF THE TUBULAR ELEMENT WHEN THE FLOAT IS AT ITS LOWERMOST POSITION, MEANS WITHIN THE TUBULAR ELEMENT FOR THE CONTINUOUS ESCAPE OF AIR FROM THE ELEMENT AND CHAMBER TO ATMOSPHERE AT A RATE LESS THAN THAT ENTERING ITS UPPER END AND THEREBY EFFECT THE GRADUAL CLOSING OF THE SLEEVE VALVE, SAID FLOAT AND VALVE MOVABLE UPON THE RISE OF COLLECTED WATER ADMITTING AIR INTO THE ELEMENT AND CHAMBER CAUSING THE UPWARD MOVEMENT OF THE SLEEVE VALVE AND THE OPENING OF THE RADIAL PASSAGES FOR THE DISCHARGE OF COLLECTED WATER, AND EXPANSIBLE MEANS BETWEEN THE PISTON AND VALVE EXERTING AN ADDITIONAL FORCE TO THE CLOSING OF THE SLEEVE VALVE UPON THE GRADUAL ESCAPE OF AIR FROM THE CHAMBER TO ATMOSPHERE.