Trap devices

Claim 1

IN COMBINATION WITH A LIQUID SPRAY DEVICE FOR USE IN AIR TREATING SYSTEMS, SAID DEVICE INCLUDING A CASING, A SUMP, SPRAY MEANS AND A PUMP TO FORWARD LIQUID FROM THE SUMP TO THE SPRAY MEANS FOR DISCHARGE INTO AN AIR STREAM DIRECTED THROUGH THE CASING, AND OVERFLOW TRAP DEVICE DISPOSED IN SAID SUMP, SAID DEVICE INCLUDING AN OPEN COMPARTMENT HAVING A WALL THEREOF SERVING AS A WEIR TO MAINTAIN A DESIRED LIQUID LEVEL IN THE SUMP, MEANS FORMING A CHAMBER IN SAID COMPARTMENT OPEN TOWARD AND SPACED FROM THE BOTTOM OF THE COMPARTMENT, A FIRST DRAIN LINE COMMUNICATING THE CHAMBER WITH THE EXTERIOR OF THE CASING AND ADAPTED TO COOPERATE WITH THE CHAMBER TO FORM A LIQUID SEAL IN THE CHAMBER, A SECOND DRAIN LINE COMMUNICATING THE CHAMBER WITH THE EXTERIOR OF THE CASING AND ADAPTED TO COOPERATE WITH THE CHAMBER TO FORM A LIQUID SEAL IN THE CHAMBER, SAID FIRST DRAIN LINE BEING SPACED A GREATER DISTANCE FROM THE OPEN END OF SAID CHAMBER THAN THE SECOND DRAIN LINE WHEREBY SAID FIRST DRAIN LINE IS UTILIZED FOR OVERFLOW LIQUID WHEN PRESSURE IN CASING IS GREATER THAN AMBIENT PRESSURE AND SAID SECOND DRAIN LINE IS UTILIZED FOR OVERFLOW LIQUID WHEN AMBIENT PRESSURE IS GREATER THAN PRESSURE IN THE CASING, AND MEANS FOR SEALING THE DRAIN LINE NOT UTILIZED DURING OPERATION.