Patent ID: 7636957
Filing Date: 2009-12-29
Classification: E03C

Abstract:
1. An oil-based odor trap arrangement for a waterless urinal comprising: an elongated tube having a first end and a second end, said tube received within a cavity situated in a lower portion of the waterless urinal, wherein said first end of said tube is adapted to be removably attached to the cavity; and a strainer having a body and defining a cap portion and a ring portion, said ring portion extending axially away from said cap portion, said cap portion having a top surface and a bottom surface extending beyond a periphery of said ring portion thereby forming a lip having a perimeter, said lip further comprising a plurality of spaced apart protrusions extending axially away from said bottom surface of said cap portion thus forming passageways between adjacent protrusions to allow fluid to pass therethrough, wherein said perimeter of said lip extends beyond a periphery of said protrusions, and wherein said strainer is adapted to receive said tube such that said second end of said tube engages an underside of said cap portion whereby said ring portion partially envelopes said tube thus forming a baffle configured to: contain an oil-based substance between said ring portion and a wall of the cavity; accommodate the flow of fluid from the urinal between said ring portion and said tube; and direct the fluid into said tube.