US2004128750A1PendingUtilityA1

Automatic toilet/urinal cleaning device

Priority: Jan 6, 2003Filed: Jan 6, 2003Published: Jul 8, 2004
Est. expiryJan 6, 2023(expired)· nominal 20-yr term from priority
Inventors:Stephen Cramer
E03D 9/03E03D 9/033
28
PatentIndex Score
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Cited by
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References
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Claims

Abstract

An automatic liquid dispenser dispenses precisely measured amounts of cleaner/deodorizer into a toilets tank through a closed system is further disclosed. The invention consists of a housing that connects between the water supply line and the water supply inlet of a toilets tank and a refillable liquid storage container. The housing is installed in the flow path of the water supply used to fill a toilets tank for flushing. During the filling of the toilets tank the flow of water is directed over an orifice causing a siphon to be created. This siphon compresses a spring loaded ball check allowing liquid cleaner/deodorizer to flow into the water supply filling the toilets tank When the tank is full it contains a predetermined and precisely mixed amount of water and cleaner/deodorizer.

Claims

exact text as granted — not AI-modified
I claim:  
     
         1 . An automatic liquid dispenser for the dispensing of precisely measured amounts of cleaner/deodorizers into a toilets tank and or urinal through a closed system, the device comprising: 
 a) a housing, comprising a body which a water supply inlet line connects to, an inlet for the injection of a concentrated liquid cleaner in the center of the device and an outlet which supplies premixed cleaner and deodorizer into the toilets tank.    b) a refillable liquid storage tank which attaches to the toilet seat and tank mounting screws. An inlet to the body of the device aforesaid in  claim 1  comprises a ⅞″ standard male pipe thread for the ease of installation onto an existing flexible water supply line.    
     
     
         2 . Upstream of the inlet inserted into the flow stream of the device is a reduced orifice designed to increase flow to create a siphon for the introduction of liquid cleaner. The inlet of said orifice is connected to a storage tank containing concentrated liquid cleaner/deodorizer.  
     
     
         3 . The outlet of the device is directly attached to the inlet fill tube of a toilets tank.  
     
     
         4 . A spring loaded ball check located in the housing of such device is located between the liquid cleaner/deodorizer storage tank and the flow path of the water supply.  
     
     
         5 . When the toilet is flushed the water supply begins to flow through the device. As water flows over the orifice a vacuum is created causing the ball check to move toward the flow path of the water supply causing the spring to compress. As the ball comes off the seat it allows the liquid cleaner/deodorizer to flow into the tank. Liquid cleaner continues to flow while water flows through the device. When the tank is full a float valve in the toilets tank stops the flow of water. This immediately stops the vacuum effect over the internal orifice causing the ball to check in the seat and liquid cleaner to stop flowing.  
     
     
         6 . After a predetermined amount of flushes the storage container is emptied. Located on the top of the storage container is a cap. By opening said cap the container is easily refilled and the liquid level is restored  
     
     
         7 . The invention is the only toilet and urinal device having an easily refillable liquid cleaner/deodorizer storage container. The ease of installation of the invention is due to the design utilizing existing facilities and standardized fittings. The precise delivery of cleaner/deodorizer into a toilets tank is presently not available in any other device. Finally; the housing design provides for the introduction of the cleaner/deodorizer via a closed system. This prevents personal contact with the chemical used for cleaning the toilet and/or urinal.

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