IP Library Granted Patent US 12662804
Granted Patent B2
US 12662804 · App. 18/468,497 · Granted Jun 23, 2026

Hybrid toilet

Inventors: Darryl M. Boeltl (Whittier, CA); Christopher Adkison (Ontario, CA)
Assignee: Acorn Engineering Company
E03D11/06E03D3/00E03D11/16E03D11/18
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Quick Facts
Patent No.
US 12662804
App. No.
18/468,497
Granted
Jun 23, 2026
Kind
B2
Abstract

A toilet for connecting a flush valve to a drain pipe of a waste drainage system. The toilet includes a housing, a bowl, a seat and a P-trap assembly. The bowl is enclosed by the housing and includes a waste receptacle defined between an upper opening and a waste outlet of the bowl. The seat is coupled to the bowl and defines a seating surface with a central opening above the bowl. Additionally, the seat cooperates with the bowl to define an open rinse slot that extends about at least a portion of the bowl. The P-trap assembly includes an inlet positioned at and connected to the waste outlet of the bowl.

Claims (33)

1 . A toilet for connecting a flush valve to a drain pipe of a waste drainage system, the toilet comprising:

a housing;

a bowl, the bowl enclosed by and support on the housing, the bowl including a waste receptacle defined between an upper opening and a waste outlet, portions of the bowl forming a rinse channel, the rinse channel being defined by an upwardly extending outboard wall and a floor extending inwardly from the outboard wall to the upper opening;

a seat fixedly coupled to the bowl and defining a seating surface with a central opening, the central opening of the seat being smaller than the upper opening; the seat including a portion extending over the floor and defining a top wall of the rinse channel and cooperating with the rinse channel to define a rinse slot extending about at least a portion of the upper opening; and

a P-trap assembly, the P-trap assembly having an inlet positioned at and connected to the waste outlet of the bowl.

2 . The toilet according to claim 1 , wherein the rinse slot is open along at least a portion of its length.

3 . The toilet according to claim 1 , wherein the floor is downwardly sloped from the outboard wall to the upper opening.

4 . The toilet according to claim 1 , wherein the rinse slot decreases in width along opposing sides progressing from the rear of the bowl toward the front of the bowl.

5 . The toilet according to claim 1 , further comprising a raised land provided in the rinse channel and located toward a rear side of the bowl.

6 . The toilet according to claim 5 , wherein portions of the raised land define an upwardly extending inboard wall of the rise channel.

7 . The toilet according to claim 6 , wherein the inboard wall is generally opposed to a portion of the outboard wall.

8 . The toilet according to claim 7 , wherein the floor extends between the outboard wall and the inboard wall.

9 . The toilet according to claim 5 , wherein a portion of the raised land defines an upper surface, the upper surface being spaced below the top wall and a gap being defined therebetween.

10 . The toilet according to claim 1 , wherein the seat includes a lip extending downward from the top wall along at least a portion of the central opening of the seat, portions of the lip being located radially inward and spaced apart from the raised land so as to define a gap therebetween.

11 . The toilet according to claim 1 , further comprising a rinse water supply line, a refill reservoir and a flush valve spud connection, the flush valve spud connection configured for connection to the flush valve, the rinse water supply line including a nozzle terminating at and configured for directing rinse water into the rinse slot, the refill reservoir fluidly connecting the flush valve spud connection to the rinse water supply line, the refill reservoir including a plurality of walls defining a reservoir chamber within the refill reservoir, the reservoir chamber having a upper end and a lower end.

12 . The toilet according to claim 11 , wherein the rinse water supply line is coupled to the refill reservoir adjacent to the lower end of the reservoir chamber.

13 . The toilet according to claim 11 , further comprising a blow-out jet water supply line, the blow-out jet water supply line including a blow-out jet nozzle connected to the P-trap assembly, the refill reservoir fluidly connecting the flush valve spud connection to the blow-out jet water supply line.

14 . The toilet according to claim 13 , wherein the blow-out jet water supply line is coupled to the refill reservoir adjacent to the lower end of the reservoir chamber.

15 . The toilet according to claim 13 , wherein the refill reservoir is positioned at a height relative to the toilet that is greater than a height defined by one of a weir of P-trap assembly and the blow-out jet nozzle.

16 . The toilet according to claim 13 , wherein the housing, bowl and seat are constructed of a first material, and wherein the refill reservoir is constructed of a second material, the first material being a solid surface material, the second material being different than the first material.

17 . The toilet according to claim 1 , wherein the seat includes a downwardly extending lip extending downward from the top wall and located along at least a portion of the central opening of the seat, portions of the lip being located radially inward and spaced apart from the floor to define a gap therebetween.

18 . A hybrid toilet for connecting a flush valve to the drain pipe of a waste drainage system, the toilet comprising:

a housing enclosing a bowl, the bowl including portions defining a receptacle defined between an upper opening and a waste outlet, a seat fixedly coupled to the bowl, the seat defining a seating surface above the bowl and having a central opening, the central opening being smaller than the upper opening of the bowl;

the housing, bowl and seat being formed of a first material, the first material being a solid surface material; and

a P-trap assembly, the P-trap assembly having an inlet positioned at and connected to the waste outlet of the bowl, the P-trap assembly being constructed of a second material, the second material being different than the first material.

19 . The hybrid toilet according to claim 18 , wherein the second material is stainless steel.

20 . The hybrid toilet according to claim 18 , wherein the P-trap assembly includes a U-bend and a trap arm, the U-bend having a first section extending downward from waste outlet and a second section extending upward from the first section, and the trap arm defining a weir of the P-trap assembly.

21 . The hybrid toilet according to claim 20 , wherein the second section extends upward to a position above the waste outlet.

22 . The hybrid toilet according to claim 18 , wherein the seat is fixed and immoveable relative to the housing.

23 . The hybrid toilet according to claim 18 , further comprising a transition area between the seat and housing, the transition area being a smooth transition surface.

24 . The hybrid toilet according to claim 18 , wherein the P-trap assembly is removably connected to the waste outlet of the bowl and adapted for replacement by a second P-trap assembly having a different rough-in configuration.

25 . The hybrid toilet according to claim 18 , wherein the P-trap assembly is removably connected to the waste outlet of the bowl.

26 . The hybrid toilet according to claim 18 , wherein the P-trap assembly is removably connected to the waste outlet of the bowl by threaded fasteners in engagement with the bowl.