US2004040080A1PendingUtilityA1

Toilet assembly

Assignee: AMERICAN STANDARD INCPriority: Aug 30, 2002Filed: Aug 30, 2002Published: Mar 4, 2004
Est. expiryAug 30, 2022(expired)· nominal 20-yr term from priority
E03D 11/02E03D 11/08E03D 1/34E03D 2201/30E03D 2201/40E03D 11/00
41
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Claims

Abstract

A toilet includes a toilet bowl assembly having a toilet bowl and a trapway extending from the bottom of the toilet bowl to a sewage line. The toilet bowl has a rim channel provided along an upper perimeter portion thereof. In this toilet, the flush water flows through the rim channel in a path which is asymmetric and unidirectional along the entire perimeter portion thereof. The rim channel includes a plurality of rim openings distributed evenly along the perimeter of the rim channel. Flush water passing through the plurality of rim openings pre-wets the entire perimeter of the toilet bowl. The rim channel further includes a pair of water discharge slots which directs water directly into the toilet bowl in two powerful streams. The flush valve allowing passage of water from the water tank to the toilet bowl assembly is in the form of a valve inlet having a radiused port to generate greater energy throughput of the flush water.

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
         1 . A water closet comprising: 
 a toilet bowl assembly having a toilet bowl and a trapway extending from the bottom of the toilet bowl to a sewage line, the toilet bowl having a rim channel along an upper perimetral portion thereof;    a water tank positioned over the toilet bowl assembly which contains water that is used to initiate the siphoning from the toilet bowl to the sewage line and refills the toilet bowl with fresh flush water after each flush operation; and    wherein the flush water flows through the rim channel of the toilet bowl assembly in a flow path which is asymmetric and unidirectional.    
     
     
         2 . The water closet of  claim 1  wherein said rim part has a plurality of rim openings distributed evenly along the perimeter of the rim channel.  
     
     
         3 . The water closet of  claim 2  wherein each of said rim openings has a diameter approximately {fraction (7/32)}″.  
     
     
         4 . The water closet of  claim 2  wherein flush water passing through said plurality of rim openings pre-wets the entire perimeter of the toilet bowl.  
     
     
         5 . The water closet of  claim 1  wherein said trapway has a diameter of up to approximately 2.5″ throughout its entire length.  
     
     
         6 . The water closet of  claim 1  wherein the flush water is evacuated from the toilet bowl in approximately 2.5 seconds.  
     
     
         7 . The water closet of  claim 1  and further including a water path connector for directing flush water from said water tank into said toilet bowl.  
     
     
         8 . The water closet of  claim 7  wherein said water path connector includes a discharge port bridging water flow between said water tank and said toilet bowl.  
     
     
         9 . The water closet of  claim 8  wherein said water tank has a flush valve formed of a valve inlet having a radiused port.  
     
     
         10 . The water closet of  claim 1  wherein said rim channel includes a pair of water discharge slots which discharge flush water directly into said toilet bowl in two water streams which create a strong vortex action.  
     
     
         11 . The water closet of  claim 10  wherein a first of said pair of water discharge slots is provided about halfway around the rim channel and a second of said pair of water discharge slots is provided at a back section of the toilet bowl at a terminus section of said rim channel.  
     
     
         12 . The water closet of  claim 11  wherein the first said water discharge slot has a dimension of approximately 3″×⅝″ and the second said water discharge slot has a dimension of approximately 4″×1″.  
     
     
         13 . The water closet of  claim 11  wherein a smooth sloped wall edge is provided at a terminus of said rim channel at said second of said pair of water discharge slots so as to achieve unrestricted maintenance of the water stream as water is discharged from said rim channel.  
     
     
         14 . The water closet of  claim 1  wherein said rim channel includes first and second sets of water discharge openings which discharge flush water directly into the toilet bowl in concentrated streams which create a strong vortex action.  
     
     
         15 . The water closet of  claim 1  wherein said first set of water discharge openings is provided about halfway around the rim channel and said second set of water discharge openings is provided at a back section of the toilet bowl at a terminus section of said rim channel.  
     
     
         16 . The water closet of  claim 15  wherein three water discharge openings are provided in each of said first and second sets of water discharge openings.  
     
     
         17 . The water closet of  claim 15  wherein a water discharge slit is provided in the terminus section of said rim channel after a last water discharge opening of said second set of water discharge openings, said slit being formed in a vertical end wall of said rim channel so as to achieve unrestricted maintenance of the water stream as water is discharged from said rim channel.  
     
     
         18 . The water closet of  claim 1  wherein said toilet bowl and said trapway store approximately 1.9 liters of water.  
     
     
         19 . The water closet of  claim 1  further including a direct jet channel for delivering flush water directly into a siphon jet opening section of the toilet bowl.  
     
     
         20 . The water closet of  claim 19  wherein said direct jet channel is formed at least in part of a plastic insert.  
     
     
         21 . A water closet comprising: 
 a toilet bowl assembly having a toilet bowl and a trapway extending from the bottom of the toilet bowl to a sewage line;    a water tank positioned over the toilet bowl assembly which contains water that is used to initiate siphoning from the toilet bowl to the sewage line and refills the toilet bowl with fresh flush water after each flush operation; and    a water path assembly including a transitional path way, direct water jet channel which feeds flush water directly into a base portion of said toilet bowl and a rim channel having a pair of water discharge slots which discharge flush water directly into said toilet bowl in concentrated water streams so as to create a strong vortex action in the toilet bowl and wherein said transitional pathway feeds water from said water tank into both said rim channel and said direct water jet channel.    
     
     
         22 . The water closet of  claim 21  wherein a first of said pair of water discharge slots is provided at a front section of said rim channel and a second of said pair of water discharge slots is provided at a rear end section of said rim channel.  
     
     
         23 . The water closet of  claim 22  wherein the first of said water discharge slot has a dimension of approximately 3″×⅝″ and the second said water discharge slot has a dimension of approximately 4″×1″.  
     
     
         24 . The water closet of  claim 21  wherein said a rim channel is provided along an upper peripheral portion of said toilet bowl wherein flush water flows through the rim channel of the toilet bowl assembly in a path which is asymmetric and unidirectional throughout the entire perimeter thereof.  
     
     
         25 . The water closet of  claim 24  wherein said rim channel has a plurality of rim openings distributed evenly along the perimeter of the rim channel.  
     
     
         26 . The water closet of  claim 25  wherein flush water passing through said plurality of rim openings pre-wets the entire perimeter of the toilet bowl.  
     
     
         27 . The water closet of  claim 24  wherein the flush water is evacuated from the toilet bowl in approximately 2.5 seconds.  
     
     
         28 . The water closet of  claim 21  wherein said transitional pathway is formed at least in part of a plastic insert.  
     
     
         29 . The water closet of  claim 21  wherein said direct water jet channel is formed at least in part of a plastic insert.  
     
     
         30 . The water closet of  claim 21  wherein said direct water jet channel is formed at least in part of a rubber insert.  
     
     
         31 . The water closet of  claim 21  wherein said transitional pathway provides for a side entry of flush water into both said rim channel and said direct water jet channel.  
     
     
         32 . A water closet comprising: 
 a toilet bowl assembly having a toilet bowl and a trapway extending from the bottom of the toilet bowl to a sewage line, the toilet bowl having a rim channel along an upper perimetral portion thereof, said rim channel having a plurality of rim openings distributed evenly along the perimeter of the rim channel and a pair of water discharge slots which direct water directly into said toilet bowl in two water streams;    a water tank positioned over the toilet bowl assembly which contains water that is used to initiate the siphoning from the toilet bowl to the sewage line and refills the toilet bowl with fresh flush water after each flush operation, said water tank having a flush valve in the form of a valve inlet having a radiused inlet;    a water path assembly including a transitional pathway, a direct water jet channel which feeds water directly into a base portion of said toilet bowl and a rim channel having a pair of water discharge slots which discharge flush water directly into said toilet bowl in concentrated water streams so as to create a strong vortex action in the toilet bowl and wherein said transitional pathway feeds water from said water tank into both said rim channel and said direct water jet channel; and    whereby the flush water can be evacuated from the toilet bowl in approximately 2.5 seconds.    
     
     
         33 . The water closet of  claim 32  wherein each of said rim openings has a diameter approximately {fraction (7/32)}″.  
     
     
         34 . The water closet of  claim 32  wherein flush water passing through said plurality of rim openings pre-wets the entire perimeter of the toilet bowl.  
     
     
         35 . The water closet of  claim 32  wherein said trapway has a diameter throughout its entire length of up to approximately 2.5″.  
     
     
         36 . The water closet of  claim 32  wherein a first of said pair of water discharge slots is provided about halfway around the rim channel and a second of said pair of water discharge slots is provided at a back section of the toilet bowl.  
     
     
         37 . The water closet of  claim 36  wherein the first said water discharge slot has a dimension of approximately 3″×⅝″ and said second water discharge slot has a dimension of approximately 4″×1″.  
     
     
         38 . The water closet of  claim 37  wherein said toilet bowl and said trapway store approximately 1.9 liters of water.  
     
     
         39 . The water closet of  claim 32  wherein the transitional pathway is in the form of a sweep elbow having a radius of approximately 3 inches.

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