Primed jet toilet

Patent metadata

Field	Value
Publication number	US-11193265-B2
Application number	US-201916257540-A
Country	US
Kind code	B2
Filing date	Jan 25, 2019
Priority date	Nov 13, 2012
Publication date	Dec 7, 2021
Grant date	Dec 7, 2021

Abstract

A siphonic flush toilet system and method of priming the same having a toilet bowl assembly comprising at least one jet flush valve assembly and at least one rim valve; and bowl having a rim and a jet defining at least one jet channel. The bowl has a closed jet pathway to maintain the jet channel in a primed state with fluid from the jet flush valve assembly to prevent air from entering the closed jet pathway. Flush valves may have back-flow preventer mechanisms and/or at least partly flexible valve covers, including specific valve cover structures. Flush activation assemblies may have a flush activation bar connected to the pivot rod and/or an adjustable flush connector located between the pivot rod and the flush activation bar. A kit providing one or more flush activation elements is included. The kit elements may be usable with the toilet systems and methods described.

First claim

We claim:

1. A valve cover for a flush valve assembly having a flush valve body extending from a flush valve inlet to a flush valve outlet, the valve cover configured to extend over the flush valve inlet, the valve cover comprising
a seal; and
a rigid cover capable of bending with the seal for gradual opening of the valve cover, wherein the seal comprises a sealing surface and a locking surface, wherein the locking surface comprises a plurality of locking lugs positioned on the locking surface so as to engage a plurality of corresponding openings in the rigid cover.

2. The valve cover according to claim 1 , wherein each locking lug comprises a head and a neck, wherein a distance measured along a transverse line across a cross-section of a top surface of the neck is smaller than a distance measured along a transverse line across a cross-section of a bottom surface of the head.

3. The valve cover for a flush valve assembly according to claim 1 , wherein the plurality of locking lugs are arranged in a first row, a second row, and a third row.

4. The valve cover for a flush valve assembly according to claim 3 , wherein the first row is located about 5 mm to about 15 mm from a point on a front edge of the cover on a central vertical longitudinal plane through the valve cover, the second row is located about 40 mm to about 50 mm from the point, and the third row is located about 60 mm to about 80 mm from the point.

5. The valve cover for a flush valve assembly according to claim 3 , wherein each of the first row, the second row and the third row of locking lugs comprises at least one locking lug.

6. The valve cover according to claim 3 , wherein each locking lug comprises a head and a neck, wherein the neck has a generally cylindrical shape, and the head is generally cone-shaped having a rounded top surface.

7. The valve cover according to claim 6 , wherein the head of the first row of locking lugs and the head of the second row of locking lugs is generally flat along a side facing a central vertical longitudinal plane of the valve cover.

8. The valve cover according to claim 1 , wherein at least the sealing surface comprises silicone.

9. The valve cover according to claim 1 , wherein the rigid cover comprises a peeling section and a lifting section.

10. The valve cover according to claim 9 , wherein there is a transverse separation between a back edge of the peeling section and a front edge of the lifting section, and wherein the back edge of the peeling section and the front edge of the lifting section are substantially parallel to each other and substantially perpendicular to a central longitudinal plane, and a transverse distance measured from the back edge of the peeling section to the front edge of the lifting section is about 10 mm to about 20 mm.

11. The valve cover according to claim 9 , wherein the peeling section comprises at least one hinged mount, the hinged mount configured to connect with the lifting section.

12. The valve cover according to claim 9 , wherein the seal is positioned in facing engagement with the peeling section and the lifting section of the rigid cover.

13. The valve cover according to claim 9 , wherein the seal is connected to the peeling section and the lifting section through the use of a plurality of locking lugs.

14. The valve cover according to claim 9 , wherein the seal is connected to the peeling section and the lifting section through the use of an adhesive.

15. The valve cover according to claim 9 , wherein the peeling section is configured so as to interact with a flush activation bar.

16. The valve cover according to claim 15 further comprising a float attachment.

17. A flush valve assembly for a flush toilet, comprising
a valve body extending from a flush valve inlet to a flush valve outlet, and the valve cover of claim 1 .

18. The valve assembly according to claim 17 , wherein the flush toilet is a siphonic flush toilet.

19. The valve assembly according to claim 17 further comprising an overflow tube connected to the valve body and configured to allow liquid to enter the valve body when the valve cover is closed.

20. A flexible seal for a valve cover for a flush valve assembly, wherein the seal comprises a sealing surface and a locking surface, wherein the locking surface comprises a plurality of locking lugs positioned on the locking surface to engage a plurality of corresponding openings in a rigid cover.

21. The seal according to claim 20 , wherein the seal comprises silicone.

22. The seal according to claim 20 , wherein each locking lug comprises a head and a neck, wherein a distance measured along a transverse line across a cross-section of a top surface of the neck is smaller than a distance measured along a transverse line across a cross-section of a bottom surface of the head.

23. The seal according to claim 20 , wherein the plurality of locking lugs are arranged in a first row, a second row, and a third row, from a point on a front edge of the seal on a central vertical longitudinal plane through the seal.

24. The seal according to claim 23 , wherein each of the first row, the second row and the third row of locking lugs comprises at least one locking lug.

Assignees

• As America Inc

Inventors

• Grover David
• Ishiyama Daigo
• Bucher Christophe
• Le Tuan
• Mchale James

Classifications

• E03D1/145

  having multiple flush outlets · CPC title

• E03D11/06

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

• E03D2201/40

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

• E03D2201/30

  Water injection in siphon for enhancing flushing · CPC title

• E03D11/08 Primary

  Bowls with means producing a flushing water swirl · CPC title