Chemical dosing system

A liquid dosing device for use with a liquid dispenser including a container for holding liquid in fluid communication with a dispenser base having a liquid reservoir with at least one outlet port, the liquid dosing device including:

• a. a valve housing mounted to the dispenser base, the valve housing including an open top, an outlet port and a blocking region;
• b. a dosing cup movably mounted within the valve housing in fluid communication with the reservoir, the dosing cup having at least one inlet port in fluid communication with the reservoir outlet port, a blocking region, at least one outlet port and means for moving the dosing cup between a fill position to receive the liquid and a dose position to dispense the liquid;
• and
• c. wherein, when the dosing cup is moved to the fill position, the reservoir outlet port and the dosing cup inlet port align to permit the liquid to flow from the reservoir into the dosing cup and the outlet port of the dosing cup and the blocking region of the valve housing align to prevent the liquid in the dosing cup from flowing out of the dosing cup, and when the dosing cup is moved to the dose position, the reservoir outlet port and the dosing cup blocking region align to prevent the liquid from flowing from the reservoir into the dosing cup and the outlet port of the dosing cup and the outlet port of the valve housing align to permit the liquid in the dosing cup to flow out of the dosing cup and valve housing.

A liquid dosing device for use with a liquid dispenser including a container for holding liquid and a base, the container having an opening to permit the liquid to flow out of the container, the base having an inlet port, outlet port and means for engaging the container to permit the liquid in the container to flow through the base inlet and outlet ports, the liquid dosing device including:

• a. a valve housing mounted to a bottom of the dispenser base, the valve housing including an open top, an elongated slot in a side of the valve housing, an outlet port and a blocking region;
• b. a reservoir mounted to the bottom of the dispenser base, within the valve housing, the reservoir having an open top and at least one outlet port;
• c. a dosing cup rotatably mounted within the valve housing below the reservoir outlet port, the dosing cup having an open top, at least one outlet port and a dosing lever attached to a side of the dosing cup, the dosing lever of the dosing cup extending through the elongated slot in the side of the valve housing for rotating the dosing cup between a fill position to receive the liquid and an empty position to drain the liquid from the dosing cup;
• d. a cap mounted over the open top of the dosing cup, below the reservoir, the cap having at least one inlet port and a blocking region;
• e. wherein, when the dosing cup is rotated to the fill position, the reservoir outlet port and the cap inlet port align to permit the liquid to flow from the reservoir into the dosing cup, while the outlet port of the dosing cup is aligned with the blocking region of the valve housing to prevent the liquid in the dosing cup from flowing out of the dosing cup, and when the dosing cup is rotated to the empty position, the reservoir outlet port is aligned with the cap blocking region to prevent the liquid from flowing from the reservoir into the dosing cup, while the outlet port of the dosing cup and the outlet port of the valve housing are aligned to permit the liquid in the dosing cup to flowing out of the dosing cup and valve housing.

A liquid dosing device for use with a liquid dispenser including a container for holding liquid and a base, the container having a threaded neck defining a throat to permit the liquid to flow out of the container and a valve having an open and a closed position, mounted within the throat of the container neck to control the flow of the liquid from the container, the base having a threaded inlet port for engaging the neck of the container, a probe for engaging the container valve to cause it to move to the open position, and an outlet port, the liquid dosing device including:

• a. a valve housing mounted to a bottom of the dispenser base, the valve housing including an open top, an elongated slot in a side of the valve housing, an outlet port and a blocking region;
• b. a reservoir mounted to the bottom of the dispenser base, within the valve housing, the reservoir having at least one inlet port and at least one outlet port, a dosing cup rotatably mounted within the valve housing below the reservoir outlet port, the dosing cup having an open top, at least one outlet port and a dosing lever attached to a side of the dosing cup, the dosing lever of the dosing cup extending through the elongated slot in the side of the valve housing for rotating the dosing cup between a fill position to receive the liquid and an empty position to drain the liquid from the dosing cup;
• c. a cap mounted over the open top of the dosing cup, the cap having at least one inlet port and a blocking region;
• d. wherein, when the dosing cup is rotated to the fill position, the reservoir outlet port and the cap inlet port align to permit the liquid to flow from the reservoir into the dosing cup, while the outlet port of the dosing cup is aligned with the blocking region of the valve housing to prevent the liquid in the dosing cup from flowing out of the dosing cup, and when the dosing cup is rotated to the empty position, the reservoir outlet port is aligned with the cap blocking region to prevent the liquid from flowing from the reservoir into the dosing cup, while the outlet port of the dosing cup and the outlet port of the valve housing are aligned to permit the liquid in the dosing cup to flowing out of the dosing cup and valve housing.