Automatic dispensing system

Details Automatic dispensing system Automatic dispensing system

1997-08-20

1999-07-20

Walczak, David J.

Baths, closets, sinks, and spittoons

Disinfection

Dispensing to water in flush tank

42273, 4222, E03D 902

Patent

active

059241420

ABSTRACT:
An automatic dispensing system dispenses chemical directly into a toilet bowl after the toilet bowl is flushed and includes a chemical dispenser and a hydraulic actuator. The chemical dispenser includes a pumping unit attached to a storage unit for storing a chemical cleaning and/or disinfecting solution. The chemical dispenser is attached to the hydraulic actuator, which is in turn attached to the overflow pipe in the tank of the toilet. The hydraulic actuator is also connected to a toilet bowl refill hose. During the flushing process, pressurized water controlled by a water level control unit is used to refill the toilet tank. Some of this water is shunted to the hydraulic actuator assembly. In response to the flow of pressurized water, the hydraulic actuator actuates the pumping unit to measure out a predetermined amount of chemical. When the toilet tank is refilled, the flow of pressurized water is stopped. In response to the stoppage of the pressurized water, the hydraulic actuator assembly causes the pumping unit to inject the measured out chemical directly into the toilet bowl through the toilet bowl refill hose.

REFERENCES:
patent: 4429809 (1984-02-01), Bousgarbies
patent: 4656676 (1987-04-01), Dufau et al.
patent: 5152015 (1992-10-01), Fourman
patent: 5488742 (1996-02-01), Liao
patent: 5603126 (1997-02-01), Scoggins

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