Waterless Toilet

• US 20200008632A1
• Filed: 06/06/2019
• Published: 01/09/2020
• Est. Priority Date: 07/06/2018
• Status: Active Grant

• Current Assignee: 1314475 BC Limited
• Original Assignee: Richard Brunt
• Inventors: Brunt, Richard
• Granted Patent: US 10,638,894 B2
• Time in Patent Office: Days
• CPC Class Codes: A47K 11/02 Dry closets, e.g. incinerator closets
• CPC Class Codes: A47K 11/12 Urinals without flushing portable urinating aids A61F5/4556; urinals for bed-ridden persons A61G9/00
• CPC Class Codes: Y02A 50/30 Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

Abstract

A waterless toilet that separates liquid waste from solid waste is provided. The toilet has a front section which is a urinal and a back section which is a chute with a bore. A trap door is moveable between an open position and a closed position and is controlled by a lever. In the closed position, it forms a leak-proof seal with the rim of the bore. The lever also actuates an inching mechanism that urges a solid waste receptacle to be rotated slightly on each use.

Claims

1. A waterless toilet for separating liquid waste from solid waste, the waterless toilet comprising a bowl and a toilet seat which is either integral with the bowl section or is attached to the bowl, the bowl including:

a front;

a rear opposite the front;

a sidewall therebetween;

an upper section comprising a chute defining a bore proximate the rear, a urinal proximate the front, the urinal including a drain and a urinal sidewall, the urinal sidewall including an inner surface and a wall between the urinal and the chute;

a base below the upper section, the base sized to releasably retain a solid waste receptacle;

a divider which separates the upper section from the base, the divider including an underside and an opening which is continuous with the bore;

a drain pipe, which is aligned with the drain of the urinal;

a trap door, which is housed in the base, is sized to occlude the opening and is moveable from an open position to a closed position, the trap door including a bottom, a front, a back opposite the front, a perimeter therearound and a barrier, the barrier extending upward around the perimeter, except at the front, and sized to extend upward around the chute, wherein the trap door and the underside of the divider are releasably connected and are configured to release in response to a force; and

a lever which is attached to the trap door and extends through the divider, the lever for a user to urge the trap door between the open position and the closed position.

2. The waterless toilet of claim 1, wherein the urinal sidewall and the trap door are releasably connected and are configured to release in response to the force.

3. The waterless toilet of claim 2, wherein the underside of the divider and the trap door are releasably connected by a first magnetic field in the open position and by a second magnetic field in the closed position.

4. The waterless toilet of claim 3, wherein the urinal sidewall and the trap door are releasably connected by at least one magnetic field.

5. The waterless toilet of claim 4, wherein the magnetic fields are each produced by a pair of magnets to provide a leak-proof seal.

6. The waterless toilet of claim 5, further comprising a support, the support attached to the sidewall in the base and extending inward, a holder for the solid waste receptacle, the holder in rotational engagement with the support, and an inching mechanism, the inching mechanism in mechanical communication with the holder.

7. The waterless toilet of claim 6, wherein the inching mechanism is in driven relation with the trap door, such that it urges the holder to rotate as the trap door moves between the closed and the open position.

8. The waterless toilet of claim 7, wherein the holder includes a rachet on a lower surface, the rachet in rotational engagement with the inching mechanism.

9. The waterless toilet of any one claim 8, wherein the inching mechanism includes a first arm, which includes a mouth that engages the trap door, a second arm pivotally attached to the first arm and a pawl pivotally attached to the second arm, the pawl moveably engaging the rachet.

10. The waterless toilet of claim 9, wherein the trap door includes a tail extending outward from the back, the mouth engaging the tail.

11. The waterless toilet of claim 10, further comprising a toilet lid, the toilet lid including a gasket on an underside, the toilet lid forming an airtight seal with the toilet seat when in a closed position.

12. The waterless toilet of claim 11, further comprising a secondary urine collector, which is located below the urinal to define a slot and includes a second drain, the second drain aligned with the drain pipe.

13. The waterless toilet of claim 12 wherein the front of the trap door is within the slot when the trap door is in the closed position.

14. The waterless toilet of claim 13, further comprising a middle section, wherein the middle section is disposed between the upper section and the base and includes the drain pipe.

15. The waterless toilet of claim 14, wherein the toilet is modular and comprises, as independently molded modules, the upper section, the middle section and the base.

16. The waterless toilet of claim 15, further comprising the solid waste receptacle, which is removable.

17. The waterless toilet of claim 16, further comprising a lid that forms an airtight seal with the seat.

18. The waterless toilet of claim 5, wherein the barrier of the trap door includes a wing which extends outward from the barrier and retains a magnet of the pair of magnets on each of a side.

19. A waterless toilet system, the system comprising

a waterless toilet, the waterless toilet comprising a bowl and a toilet seat which is either integral with the bowl section or is attached to the bowl, the bowl including:

a front;

a rear opposite the front;

a sidewall therebetween;

an upper section comprising a chute defining a bore proximate the rear, a urinal proximate the front, the urinal including a drain and a urinal sidewall, the urinal sidewall including an inner surface and a wall between the urinal and the chute;

a base below the upper section, the base sized to releasably retain a solid waste receptacle;

a divider which separates the upper section from the base, the divider including an underside and an opening which is continuous with the bore;

a drain pipe, which is aligned with the drain of the urinal;

a trap door, which is housed in the base, is sized to occlude the opening and is moveable from an open position to a closed position, the trap door including a bottom, a front, a back opposite the front, a perimeter therearound and a barrier, the barrier extending upward around the perimeter, except at the front, and sized to extend upward around the chute, wherein the trap door and the underside of the divider are releasably connected and are configured to release in response to a force; and

a lever which is attached to the trap door and extends through the divider, the lever for a user to urge the trap door between the open position and the closed position,

a conduit, the conduit in fluid communication with the fan and an ambient environment exterior to a building, and

an exhaust vent, the exhaust vent in fluid communication with an interior of the base and the ambient environment exterior to the building.

20. The waterless toilet system of claim 19, wherein the underside of the divider and the trap door are releasably connected by a first magnetic field in the open position and by a second magnetic field in the closed position.

21. The waterless toilet system of claim 20, wherein the urinal sidewall and the trap door are releasably connected by at least one magnetic field.