Dry urinal apparatus
AssigneeEidon, LLC
InventorRoger N. Johnson
Life of this patent
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Abstract
A dry urinal apparatus, comprising a receptacle configured to store urine, the urine having a layer of oil on its surface and a siphon assembly disposed within the receptacle and coupled to a reservoir. The siphon assembly includes a siphon tube and drain tube, the siphon tube operable to force urine down the drain tube, wherein the reservoir is configured to cease operation of the siphon assembly prior to the siphon tube pulling up the layer of oil with the urine. The reservoir is configured to cease operation of the siphon assembly in response to a distance required to pull air bubbles up the reservoir and into the drain tube being less than a distance required to raise urine into the drain tube.
Claims9
A dry urinal apparatus, comprising:
- a receptacle having an opening which receives urine and a layer of oil on a top surface of the urine, the receptacle includes a cap opposite the opening;
- a drain tube positioned through the cap of the receptacle, the drain tube including an upper portion positioned within the receptacle and a lower portion external to the receptacle;
- a siphon tube positioned within the receptacle and partially encapsulates the upper portion of the drain tube while exposing the cap to the urine, wherein the urine draining down the drain tube pulls the urine from the receptacle up the siphon tube;
- and
- a reservoir having a first opening coupled to the siphon tube and a second opening exposed to air, the first and second openings arranged such that the urine draining down the drain tube ceases responsive to a distance to pull the air from the second opening and into the drain tube via the first opening being less than a distance to raise the urine within the siphon tube up and into the drain tube.
Dependencies are inferred from the claim text.