Flushing system for a water closet
First Claim
1. An improved flushing system for flushing a water closet with a flow of water from a pressurized water line after use by a person, comprising:
- a sensor mounted relative to the water closet for sensing an arrival of the person within a zone and a departure of the person from said zone, said zone being located in a preselected proximity relative to the water closet;
a controller connected to said sensor for determining the existence of a short-flush condition and the existence of a long-flush condition;
said short-flush condition existing when said departure is sensed by said sensor, and an elapsed time between said arrival and said departure is less than a preselected time interval;
said long-flush condition existing when said departure is sensed by said sensor, and said elapsed time is greater than said preselected time interval;
a valve interposed between the pressurized water line and the water closet;
said valve having an open position for enabling the flow of water into the water closet and having a closed position for inhibiting the flow of water into the water closet;
an actuator connected to said valve and said controller for moving said valve into said open position for a first duration when said controller determines the existence of said short-flush condition, and for then returning said valve into said closed position; and
said actuator for moving said valve into said open position for a second duration when said controller determines the existence of said long-flush condition, and for then returning said valve to said closed position.
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Accused Products
Abstract
An apparatus and method for an improved flushing system for flushing a water closet from a pressurized water line includes sensor which senses an arrival and a departure of a person within a zone proximate the water closet. A controller is connected to the sensor for determining the existence of a low water volume flush condition and the existence of a high water volume flush condition. The low water volume flush condition exists when the sensor senses an elapsed time between the arrival and the departure of less than a preselected time interval. The high water volume flush condition exists when the sensor senses an elapsed time greater than the preselected time interval.
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Citations
18 Claims
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1. An improved flushing system for flushing a water closet with a flow of water from a pressurized water line after use by a person, comprising:
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a sensor mounted relative to the water closet for sensing an arrival of the person within a zone and a departure of the person from said zone, said zone being located in a preselected proximity relative to the water closet; a controller connected to said sensor for determining the existence of a short-flush condition and the existence of a long-flush condition; said short-flush condition existing when said departure is sensed by said sensor, and an elapsed time between said arrival and said departure is less than a preselected time interval; said long-flush condition existing when said departure is sensed by said sensor, and said elapsed time is greater than said preselected time interval; a valve interposed between the pressurized water line and the water closet; said valve having an open position for enabling the flow of water into the water closet and having a closed position for inhibiting the flow of water into the water closet; an actuator connected to said valve and said controller for moving said valve into said open position for a first duration when said controller determines the existence of said short-flush condition, and for then returning said valve into said closed position; and said actuator for moving said valve into said open position for a second duration when said controller determines the existence of said long-flush condition, and for then returning said valve to said closed position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification