US2013269093A1PendingUtilityA1

Toilet flapper from stainless steel

Individually held — no corporate assignee on recordPriority: Apr 16, 2012Filed: Feb 13, 2013Published: Oct 17, 2013
Est. expiryApr 16, 2032(~5.7 yrs left)· nominal 20-yr term from priority
Inventors:Dennis P. Vlach
E03D 1/306
22
PatentIndex Score
0
Cited by
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References
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Claims

Abstract

Improvements in a toilet flapper that is formed from an assembly of stainless steel components. The flapper includes hinge pivoting arms, the main body and the float as an integrated assembly. The integrated assembly is made from stamped and formed thin stainless steel sheet metal components that provide sufficient buoyance to allow the flapper to open and close. The toilet flapper made from stainless steel for the float to be sufficiently sized to fit within the throat of the drain pipe and also provide sufficient buoyancy for operation. The toilet flapper made from stainless steel for the flapper to remain flat. The seat remains flat because the stainless steel is essentially not affected by chemicals or age. The stainless steel is preferably 300 series and more preferably 304 stainless, but other types will provide similar sealing and structural functionality.

Claims

exact text as granted — not AI-modified
1 . A toilet flapper comprising:
 an assembly of a hinge, flapper cover and a float;   said hinge connects from pivot points on a stand pipe;   said hinge connects to a flapper cover that is sized to accept a seal that prevents undesirable flow through a toilet flush valve fitting, and   a float that is sized to fit within said toilet flush valve fitting and provide sufficient buoyancy to operate a flushing cycle.   
     
     
         2 . The toilet flapper according to  claim 1  wherein said assembly is made from 300 series stainless steel. 
     
     
         3 . The toilet flapper according to  claim 2  that is made from 300 series stainless steel. 
     
     
         4 . The toilet flapper according to  claim 3  wherein said toilet flapper is more preferably made from 304 series stainless steel. 
     
     
         5 . The toilet flapper according to  claim 1  wherein at least one component from said assembly is constructed from stamped or drawn plate material. 
     
     
         6 . The toilet flapper according to  claim 1  wherein said seal is replaceable. 
     
     
         7 . The toilet flapper according to  claim 1  that further includes a seal holder. 
     
     
         8 . The toilet flapper according to  claim 7  wherein said seal holder is secured to said float. 
     
     
         9 . The toilet flapper according to  claim 8  wherein said seal secures onto said seal holder. 
     
     
         10 . The toilet flapper according to  claim 1  wherein said seal is a flat disk. 
     
     
         11 . The toilet flapper according to  claim 1  wherein said seal is a conical ring. 
     
     
         12 . The toilet flapper according to  claim 1  wherein said float has an internal volume of between 1 and 2 cubic inches. 
     
     
         13  The toilet flapper according to  claim 12  wherein said internal volume is more preferably between 1.4 and 1.8 cubic inches. 
     
     
         14 . The toilet flapper according to  claim 1  wherein said flapper valve is connected to a flush arm with a coupling. 
     
     
         15 . The toilet flapper according to  claim 14  wherein said coupling is a semi-rigid coupling or a flexible coupling. 
     
     
         16 . The toilet flapper according to  claim 14  that further includes a hook that connects to a flushing arm. 
     
     
         17 . The toilet flapper according to  claim 1  wherein said assembly is secured with at least two fastener. 
     
     
         18 . The toilet flapper according to  claim 17  wherein said at least one fastener is a rivet. 
     
     
         19 . The toilet flapper according to  claim 1  wherein said hinge has formed bearing surface corners.

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