Patent ID: 7854238

Claim:
A conduit trap for plumbing a refrigeration drainage system comprising: a hollow body defining a fluid path, said hollow body comprising a substantially vertical upper conduit having a waste outlet adapted for connection to a sewer line, a condensation collection outlet disposed below the waste outlet and fluidly connected to a condensation collection tube, and a lower conduit extending downwardly from the lower end of the upper conduit, said lower conduit adapted at its lower end to be fluidly connected to a refrigeration drainage line and having an inner sealing region; and a sealing means disposed in the interior of the hollow body, said sealing means resting in a sealable seated position in the sealing region of the lower conduit in the absence of condensation flowing through the trap along the fluid path, thereby forming a gas barrier, said sealing means being displaced upwardly in the interior of the hollow body by fluid flowing therethrough, wherein at least one of the waste outlet and the condensation collection outlet is disposed above the sealing means in its seated position.