US2026028808A1PendingUtilityA1

Omni configured flapper systems for various flush valve sizes and methods of retrofit

82
Assignee: FLUIDMASTERPriority: Nov 22, 2021Filed: Sep 29, 2025Published: Jan 29, 2026
Est. expiryNov 22, 2041(~15.4 yrs left)· nominal 20-yr term from priority
E03D 1/35E03D 1/306
82
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Claims

Abstract

The disclosure is directed to a flapper system and a flapper system kit that is compatible with both 2″ and 3″ flush valve seats. In some embodiments, the flapper system is configured to enable a user to select either a 2″ or 3″ flush valve seal for the flapper system. In some embodiments, the flapper system includes a pivot that enables sealing of a flat flush valve seat or an angled flush valve seat. In some embodiments, the flapper system includes one or more adjustable window assemblies that control a fluid flowrate within an internal portion of the flapper system to control buoyancy. In some embodiments, the flapper system includes an adaptor that converts a 2″ valve into a 3″ valve.

Claims

exact text as granted — not AI-modified
We claim: 
     
         1 . A system comprising:
 a main body,   an upper buoyancy dome,   a lower buoyancy dome, and   a protrusion rod;   wherein the lower buoyancy dome is configured to couple to the upper buoyancy dome via the protrusion rod; and   wherein the main body includes a flush valve seal configured to seal a flush valve seat.   
     
     
         2 . The system of  claim 1 ,
 wherein a bottom portion of the protrusion rod is configured to engage a bottom portion of the lower buoyancy dome.   
     
     
         3 . The system of  claim 2 ,
 wherein the bottom portion of the lower buoyancy dome comprises a bleed path adjacent to the bottom portion of the bottom portion of the protrusion rod.   
     
     
         4 . The system of  claim 3 ,
 wherein rotation of the upper buoyancy dome is configured to adjust the bleed path.   
     
     
         5 . The system of  claim 4 ,
 wherein the main body comprises at least part of an adjustable window.   
     
     
         6 . The system of  claim 5 ,
 wherein the rotation of the upper buoyancy dome causes the adjustable window to open or close.   
     
     
         7 . The system of  claim 6 ,
 wherein the lower buoyancy dome comprises at least part of the adjustable window.   
     
     
         8 . The system of  claim 2 , further comprising:
 a first fulcrum mount, and   a second fulcrum mount;   wherein the first fulcrum mount is configured to mount the main body to a first sized flush seat;   wherein the second fulcrum mount is configured to mount the main body to a second sized flush seat; and   wherein the first sized flush seat is a different size than the second sized flush seat.   
     
     
         9 . A system comprising:
 a main body,   a upper buoyancy dome,   a lower buoyancy dome, and   an adjustable window;   wherein rotation of the upper buoyancy dome causes the adjustable window to open or close; and   wherein the main body includes a flush valve seal configured to seal a flush valve seat.   
     
     
         10 . The system of  claim 9 ,
 wherein the rotation of the upper buoyancy dome is configured to adjust a flowrate of water and/or air through the adjustable window.   
     
     
         11 . The system of  claim 9 ,
 wherein the lower buoyancy dome comprises a lower dome window.   
     
     
         12 . The system of  claim 11 ,
 wherein the main body comprises a main body window.   
     
     
         13 . The system of  claim 12 ,
 wherein the main body window and the lower dome window form the adjustable window.   
     
     
         14 . The system of  claim 11 ,
 wherein a bottom portion of the lower buoyancy dome comprises a bleed path.   
     
     
         15 . The system of  claim 14 ,
 wherein the rotation of the upper buoyancy dome is configured to adjust the bleed path.   
     
     
         16 . The system of  claim 9 , further comprising:
 a protrusion rod;   wherein the lower buoyancy dome is configured to couple to the upper buoyancy dome via the protrusion rod.   
     
     
         17 . The system of  claim 16 ,
 wherein a bleed path is positioned adjacent to a distal end of the protrusion rod.   
     
     
         18 . The system of  claim 9 , further comprising:
 a first fulcrum mount, and   a second fulcrum mount;   wherein the first fulcrum mount is configured to mount the main body to a first sized flush seat;   wherein the second fulcrum mount is configured to mount the main body to a second sized flush seat; and   wherein the first sized flush seat is a different size than the second sized flush seat.

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