Helical drain for a toilet

Patent metadata

Field	Value
Publication number	US-9957705-B2
Application number	US-201615168664-A
Country	US
Kind code	B2
Filing date	May 31, 2016
Priority date	Jan 9, 2016
Publication date	May 1, 2018
Grant date	May 1, 2018

Abstract

A helical drain for a toilet is disclosed. The present invention relates to a novel toilet drain configuration. Specifically, the novel toilet drain configuration comprises a helical loop trapway. The drain of the present invention exits the toilet bowl and forms a substantially vertical tubular loop running generally parallel to the width of the bowl or stool, or perpendicular to the longitudinal axis of the bowl or stool, before being connected to a sewer. The drain of the present invention functions like a P-trap syphon in removing the contents of the bowl. The diameter of the looped tubular portion of the drain may vary by approximately 20 percent or less in the direction of the sewer connection. Sensors may be placed on the drain to monitor drain contents, fluid levels, and drain performance. The drain may be fitted with valves to control the flow of fluids and gases through the drain.

First claim

The invention claimed is:

1. A toilet comprising:
a helical loop trapway;
an entrance port, wherein the entrance port is disposed at a toilet bowl exit upwardly to an apex of the helical loop trapway, wherein the helical loop trapway has substantially monotonic helicity from the entrance port of the helical loop trapway; and
a flush water delivery port on a side of the toilet bowl opposing the entrance port of the helical loop trapway.

2. The toilet according to claim 1 , wherein the helical loop trapway has a helical axis having a major directional component that is out of a vertical plane extending through a middle of the toilet front to a toilet back.

3. The toilet according to claim 1 , wherein the entrance port of the helical loop trapway is positioned on a side of a toilet bowl.

4. The toilet according to claim 3 , wherein the flush water delivery port extends downwardly from a flush water reservoir through a right angle and to the flush water delivery port.

5. The toilet according to claim 1 , wherein the helical loop trapway has at least a portion from an exit of the toilet bowl to a sewer line having a gradually narrowing internal diameter.

6. The toilet according to claim 1 , wherein the helical loop trapway has an internal diameter that varies by 25 percent or less.

7. The toilet according to claim 1 , wherein the helical loop trapway exits from a toilet bowl in a downward direction.

8. The toilet according to claim 7 , wherein the toilet further comprises a flush water delivery port on a side of the toilet bowl opposing the trapway and oriented toward entrance in a downward direction.

9. The toilet according to claim 1 , wherein the helical loop trapway has a center axis that extends out of a vertical front-to-back plane through the middle of the toilet.

10. The toilet according to claim 1 , wherein the toilet comprises:
a toilet bowl for receiving waste, wherein the toilet bowl comprises an exit port for waste connected to an entrance port of the helical loop trapway, and
a standing water level,
wherein the exit port is below the standing water level and oriented substantially to one side, and wherein the helical loop trapway has a portion elevated above the exit port and entrance port.

11. The toilet according to claim 10 , wherein the entrance port is below the standing water level and opposes the exit port.

12. The toilet according to claim 10 , wherein the helical trapway has a substantially monotonic helicity from the trapway entrance to the trapway exit.

13. The toilet according to claim 10 , further comprising at least one capacitive sensor, wherein the at least one capacitive sensor detects the fill level or static water level of the toilet bowl.

14. The toilet according to claim 10 , further comprising health sensors.

15. A toilet helical loop trapway comprising an entrance port configured to receive waste from a toilet bowl, a portion comprising:
a helical loop having monotonic helicity from the entrance port upwardly to at least an apex of the helical loop trapway, and
an exit configured to exhaust waste into a sewer, wherein the helical loop portion comprises a portion that is elevated above the entrance and the exit.

16. The toilet helical loop trapway according to claim 15 , wherein the portion comprising a helical loop having monotonic helicity extends from the entrance port upwardly through the apex of the helical loop trapway and to at least a portion that is oriented in a vertically downward direction.

Assignees

• Hall David R
• Allen Dan
• Reynolds Jared
• Larsen Joshua
• Fox Joe

Inventors

• Hall David R
• Allen Dan
• Reynolds Jared
• Larsen Joshua
• Fox Joe

Classifications

• E03D11/06 Primary

  Bowls with downwardly-extending flanges {for the sake of flushing} · CPC title

• E03D2201/30

  Water injection in siphon for enhancing flushing · CPC title

• E03D11/18 Primary

  Siphons (for pipes in general F16L43/00, F16L45/00 {; if as part of the bowl E03D11/02; connecting the siphon to the bowl}) · CPC title

• A61B10/0038

  Devices for taking faeces samples; Faecal examination devices (anal receptacles A61F5/451) · CPC title