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US Patent 7636959 Toilet overflow prevention system and method

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Patent
Patent

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
7636959
Date of Patent
December 29, 2009
Patent Application Number
11733616
Date Filed
April 10, 2007
Patent Citations Received
‌
US Patent 11746516 Toilet with overflow protection
Patent Primary Examiner
‌
Gregory L. Huson
Patent abstract

A system for preventing overflow of a toilet includes a sensor, a processor and an actuator. The sensor senses a parameter caused by fluid dynamics within the toilet during a flush cycle. The parameter may involve vibration, sound, pressure, fluid flow rate or other detectible characteristics of the toilet. The processor uses information regarding the parameter that is gathered by the sensor to evaluate the condition of the flush cycle to determine if an impeded flush condition exists. In the event of an impeded flush condition, the processor directs the actuator to close a valve, which may be the toilet flapper valve in some embodiments. Also disclosed are methods for preventing toilet overflow, detecting an impeded flush condition and calibrating the system.

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