Toilet with canned sump

Patent metadata

Field	Value
Publication number	US-12410600-B2
Application number	US-202217866163-A
Country	US
Kind code	B2
Filing date	Jul 15, 2022
Priority date	Jul 29, 2021
Publication date	Sep 9, 2025
Grant date	Sep 9, 2025

Abstract

A sump for a toilet includes a first end of the sump, defined by a first boundary, and a second end of the sump, defined by a second boundary. The sump includes a channel running from the first end of the sump to the second end of the sump defined by a sump surface. The first end of the sump is configured to receive liquid and the second end of the sump is configured to supply liquid. The sump has a sump can-cut diameter corresponding to a diameter of the channel at the first end of the sump, a sump side radius extending from a center of the channel to an inner surface of the channel, and a sump depth corresponding to a largest vertical distance within the channel. The sump may be drain cast using a single continuous pathway.

First claim

What is claimed is:

1. An assembly for a toilet, including a sump, the sump comprising:
a first end of the sump, defined by a first boundary;
a second end of the sump, defined by a second boundary;
a channel running from the first end of the sump to the second end of the sump defined by a sump surface;
a drain channel; and
a jet orifice fluidly connected to the drain channel and the sump, the jet orifice configured to deliver liquid to the sump,
wherein the first end of the sump is configured to receive liquid and the second end of the sump is configured to supply liquid,
wherein the sump has a sump can-cut diameter corresponding to a diameter of the channel at the first end of the sump, a sump side radius extending from a center of the channel to an inside surface of the channel, and a sump depth corresponding to a largest vertical distance within the channel, and
wherein the drain channel, jet orifice, and sump are drain cast using a single continuous drain cast pathway fluidly connecting the drain channel, the jet orifice, and the sump, such that a smooth and continuous curved surface is formed by the drain channel, the jet orifice, and the sump.

2. The assembly of claim 1 , wherein the ratio of the sump can-cut diameter over the sump side radius is 2.2 to 2.4.

3. The assembly of claim 1 , wherein the ratio of the sump can-cut diameter over the sump side radius is 2.4 to 2.6.

4. The assembly of claim 1 , wherein the ratio of the sump can-cut diameter over the sump side radius is greater than 2.6.

5. The assembly of claim 1 , wherein the ratio of the sump can-cut diameter over the sump depth is 1.0 to 1.2.

6. The assembly of claim 1 , wherein the ratio of the sump can-cut diameter over the sump depth is 1.2 to 1.4.

7. The assembly of claim 1 , wherein the ratio of the sump can-cut diameter over the sump depth is greater than 1.4.

8. The assembly of claim 1 , wherein the ratio of the sump can-cut diameter over the sump depth is greater than 1.15 and the ratio of sump can-cut diameter over sump side radius is greater than 2.3.

9. The assembly of claim 1 , further comprising:
at least one dimple located on the sump,
wherein the at least on dimple reduces the sump side radius along a portion of the sump.

10. A toilet, comprising:
a bowl;
a sump including a channel fluidly connected to the bowl, the sump having a can-cut diameter corresponding to a diameter of the channel at a location where the channel is fluidly connected to the bowl, a sump side radius extending from a center of the channel to an inside surface of the channel, and a sump depth corresponding to a largest vertical distance within the channel;
a drain channel;
a jet orifice fluidly connected to the drain channel and the sump, the jet orifice configured to deliver the liquid to the sump; and
a trapway, fluidly connected to the sump,
wherein, the drain channel, jet orifice, sump, and trapway are drain cast using a single continuous drain cast pathway fluidly connecting the drain channel, the jet orifice, the sump, and the trapway, such that a smooth and continuous curved surface is formed by the drain channel, jet orifice, and sump.

11. The toilet of claim 10 , wherein the ratio of the sump can-cut diameter over the sump side radius is 2.4 to 2.6.

12. The toilet of claim 10 , wherein the ratio of the sump can-cut diameter over the sump side radius is greater than 2.6.

13. The toilet of claim 10 , wherein the ratio of the sump can-cut diameter over the sump depth is 1.2 to 1.4.

14. The toilet of claim 10 , wherein the ratio of the sump can-cut diameter over the sump depth is greater than 1.4.

15. The toilet of claim 10 , wherein the ratio of the sump can-cut diameter over the sump depth is greater than 1.15 and the ratio of sump can-cut diameter over sump side radius is greater than 2.3.

Assignees

• Kohler Co

Inventors

• Halloran Daniel N
• Lambert Tony L

Classifications

• E03D11/06

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

• B28B11/12

  for removing parts of the articles by cutting · CPC title

• B28B11/044

  with glaze or engobe or enamel or varnish · CPC title

• B28B1/26

  by slip-casting, i.e. by casting a suspension or dispersion of the material in a liquid-absorbent or porous mould, the liquid being allowed to soak into or pass through the walls of the mould; Moulds therefor (B28B1/52 takes precedence){; specially for manufacturing articles starting from a ceramic slip; Moulds therefor (of tubular articles B28B21/08)} · CPC title

• E03D2201/40

  Devices for distribution of flush water inside the bowl · CPC title