Spill free clean out traps

Abstract

A spill free clean out type sink trap includes a cover sealingly and detachably mounted on a container and, in one embodiment, respective individual inlet and outlet conduits are spaced apart laterally from one another. The conduits both project downwardly below the cover into the container in which case, during use, the water level in the container is spaced from the cover. This is an air space of sufficient volume to receive and hold the liquid, normally retained in the conduits, when the seal between the cover and container is broken. In another embodiment, inlet and outlet conduits are concentric and the outlet conduit projects into a further conduit to an extent such that the lower open end thereof is below the normal liquid level. The further conduit projects sufficently downwardly into the container such that the liquid free volume in the container is greater than the volume of liquid contained in the lower end of the inlet conduit and the further conduit.

Dependencies are inferred from the claim text.