Pneumatic pump control system and method of making the same including a pneumatic pressure accumulator tube

A pneumatic pump control system controlling the on and off switching of an electrically operated pump disposed in a liquid storage tank, or septic tank provided for receiving waste liquids and solids disposed below an upper layer of air, the pneumatic pump control system comprising:

• a pneumatic pressure accumulator disposed at a predetermined level within the liquid storage tank, the pneumatic pressure accumulator defining an interior air chamber for containing air, and a lower opening disposed at an elevation that represents a zero reference level, the air chamber being in communication with the liquids in the liquid storage tank when the level of the liquids are as high as the lower opening;
• a pressure transducer operatively connected to the pneumatic pressure accumulator for communication with the interior air chamber thereof to measure the differential air pressure between the air within the interior air chamber and the upper layer of air within the liquid storage tank, wherein the pressure transducer is adapted to generate an electric output signal that corresponds to the differential air pressure;
• first activation means responsive to the output signal of the pressure transducer such that when the pressure transducer indicates a pressure that corresponds to a liquid level that has risen above a predetermined start-level elevation within the liquid storage tank, the pump is activated for a period of time to discharge a predetermined quantity of liquid, referred to as a normal dose, wherein at least one normal dose is executed to lower the liquid level to a level at least as low as the start-level elevation;
• and
• clearing activation means responsive to the output signal of the pressure transducer such that when the pressure transducer indicates a pressure that corresponds to a liquid level that is at least as low as the start level elevation, the pump is activated for a period of time to discharge a predetermined quantity of liquid, referred to as a clearing dose, wherein one or more clearing doses are executed to lower the liquid level to a level below the zero reference level so that the lower opening is above the liquid level, and the interior air chamber is in communication with the upper layer of air;
• and
• wherein each dose of liquid is equal in volume.

A pneumatic pump control system for controlling the on and off switching of an electrically operated pump disposed in a liquid storage tank, or septic tank provided for receiving waste liquids and solids disposed below an upper layer of air, the pneumatic pump control system comprising:

• a pneumatic pressure accumulator disposed at a predetermined level within the liquid storage tank, the pneumatic pressure accumulator defining an interior air chamber for containing air, and a lower opening disposed at an elevation that represents a zero reference level, the air chamber being in communication with the liquids in the liquid storage tank when the level of the liquids are as high as the lower opening;
• a pressure transducer operatively connected to the pneumatic pressure accumulator for communication with the interior air chamber thereof to measure the differential air pressure between the air within the interior air chamber and the upper layer of air within the liquid storage tank, wherein the pressure transducer is adapted to generate an electric output signal that corresponds to the differential air pressure;
• first activation means responsive to the output signal of the pressure transducer such that when the pressure transducer indicates a pressure that corresponds to a liquid level that has risen above a predetermined start-level elevation within the liquid storage tank, the pump is activated for a period of time to discharge a predetermined quantity of liquid, referred to as a normal dose, wherein at least one normal dose is executed to lower the liquid level to a level at least as low as the start-level elevation;
• and
• clearing activation means responsive to the output signal of the pressure transducer such that when the pressure transducer indicates a pressure that corresponds to a liquid level that is at least as low as the start level elevation, the pump is activated for a period of time to discharge a predetermined quantity of liquid, referred to as a clearing dose, wherein one or more clearing doses are executed to lower the liquid level to a level below the zero reference level so that the lower opening is above the liquid level, and the interior air chamber is in communication with the upper layer of air;
• and
• wherein the pressure transducer is disposed outside the liquid storage tank and is communication with the interior air chamber by an elongated tubular member.

A pneumatic pump control system for controlling the on and off switching of an electrically operated pump disposed in a liquid storage tank, or septic tank provided for receiving waste liquids and solids disposed below an upper layer of air, the pneumatic pump control system comprising:

• a pneumatic pressure accumulator disposed at a predetermined level within the liquid storage tank, the pneumatic pressure accumulator defining an interior air chamber for containing air, and a lower opening disposed at an elevation that represents a zero reference level, the air chamber being in communication with the liquids in the liquid storage tank when the level of the liquids are as high as the lower opening;
• a pressure transducer operatively connected to the pneumatic pressure accumulator for communication with the interior air chamber thereof to measure the differential air pressure between the air within the interior air chamber and the upper layer of air within the liquid storage tank, wherein the pressure transducer is adapted to generate an electric output signal that corresponds to the differential air pressure;
• first activation means responsive to the output signal of the pressure transducer such that when the pressure transducer indicates a pressure that corresponds to a liquid level that has risen above a predetermined start-level elevation within the liquid storage tank, the pump is activated for a period of time to discharge a predetermined quantity of liquid, referred to as a normal dose, wherein at least one normal dose is executed to lower the liquid level to a level at least as low as the start-level elevation;
• and
• clearing activation means responsive to the output signal of the pressure transducer such that when the pressure transducer indicates a pressure that corresponds to a liquid level that is at least as low as the start level elevation, the pump is activated for a period of time to discharge a predetermined quantity of liquid, referred to as a clearing dose, wherein one or more clearing doses are executed to lower the liquid level to a level below the zero reference level so that the lower opening is above the liquid level, and the interior air chamber is in communication with the upper layer of air;
• and
• wherein the pneumatic pressure accumulator comprises an accumulator dome defining an upper end cap, and a coupling collar that extends upward from the upper end cap to define a void for receiving the pressure transducer, wherein the pressure transducer is disposed adjacent the interior air chamber of the pneumatic pressure accumulator, within the coupling collar for communication with the interior air chamber.

A method of making a pneumatic pump control system for controlling the on and off switching of an electrically operated pump disposed in a liquid storage tank provided for receiving waste liquids and solids disposed below an upper layer of air, the method comprising the steps:

• fixing a pneumatic pressure accumulator at a predetermined level within the liquid storage tank, the pneumatic pressure accumulator defining an interior air chamber for containing air, and a lower opening disposed at an elevation that represents a zero reference level, the air chamber being in communication with the liquids in the liquid storage tank when the level of the liquids are as high as the lower opening;
• connecting a pressure transducer to the pneumatic pressure accumulator for communication therebetween to measure the differential air pressure between the air within the interior air chamber and the upper layer of air within the liquid storage tank, wherein the pressure transducer is adapted to generate an electric output signal that corresponds to the differential air pressure;
• providing a first activation means responsive to the output signal of the pressure transducer such that when the pressure transducer indicates a pressure that corresponds to a liquid level that has risen above a predetermined start-level elevation within the liquid storage tank, the pump is activated for a period of time to discharge a predetermined quantity of liquid, referred to as a normal dose, wherein at least one normal doses is executed to lower the liquid level to a level at least as low as the start-level elevation;
• and
• providing a clearing activation means responsive to the output signal of the pressure transducer such that when the pressure transducer indicates a pressure that corresponds to a liquid level that is at least as low as the start level elevation, the pump is activated for a period of time to discharge a predetermined quantity of liquid, referred to as a clearing dose, wherein one or more clearing doses are executed to lower the liquid level to a level below the zero reference level so that the lower opening is above the liquid level, and the interior air chamber is in communication with the upper layer of air.

A method of making a pneumatic pump control system for controlling the on and off switching of an electrically operated pump disposed in a liquid storage tank provided for receiving waste liquids and solids disposed below an upper layer of air, the method comprising the steps:

• fixing a pneumatic pressure accumulator at a predetermined level within the liquid storage tank, the pneumatic pressure accumulator defining an interior air chamber for containing air, and a lower opening disposed at an elevation that represents a zero reference level, the air chamber being in communication with the liquids in the liquid storage tank when the level of the liquids are as high as the lower opening;
• connecting a pressure transducer to the pneumatic pressure accumulator for communication therebetween to measure the differential air pressure between the air within the interior air chamber and the upper layer of air within the liquid storage tank, wherein the pressure transducer is adapted to generate an electric output signal that corresponds to the differential air pressure;
• providing a first activation means responsive to the output signal of the pressure transducer such that when the pressure transducer indicates a pressure that corresponds to a liquid level that has risen above a predetermined start-level elevation within the liquid storage tank, the pump is activated for a period of time to discharge a predetermined quantity of liquid, referred to as a normal dose, wherein at least one normal doses is executed to lower the liquid level to a level at least as low as the start-level elevation;
• and
• providing a clearing activation means responsive to the output signal of the pressure transducer such that when the pressure transducer indicates a pressure that corresponds to a liquid level that is at least as low as the start level elevation, the pump is activated for a period of time to discharge a predetermined quantity of liquid, referred to as a clearing dose, wherein one or more clearing doses are executed to lower the liquid level to a level below the zero reference level so that the lower opening is above the liquid level, and the interior air chamber is in communication with the upper layer of air;
• and
• wherein each dose of liquid is equal in volume.

A method of making pneumatic pump control system for controlling the on and off switching of an electrically operated pump disposed in a liquid storage tank provided for receiving waste liquids and solids disposed below an upper layer of air, the method comprising the steps:

• fixing a pneumatic pressure accumulator at a predetermined level within the liquid storage tank, the pneumatic pressure accumulator defining an interior air chamber for containing air, and a lower opening disposed at an elevation that represents a zero reference level, the air chamber being in communication with the liquids in the liquid storage tank when the level of the liquids are as high as the lower opening;
• connecting a pressure transducer to the pneumatic pressure accumulator for communication therebetween to measure the differential air pressure between the air within the interior air chamber and the upper layer of air within the liquid storage tank, wherein the pressure transducer is adapted to generate an electric output signal that corresponds to the differential air pressure;
• providing a first activation means responsive to the output signal of the pressure transducer such that when the pressure transducer indicates a pressure that corresponds to a liquid level that has risen above a predetermined start-level elevation within the liquid storage tank, the pump is activated for a period of time to discharge a predetermined quantity of liquid, referred to as a normal dose, wherein at least one normal doses is executed to lower the liquid level to a level at least as low as the start-level elevation;
• and
• providing a clearing activation means responsive to the output signal of the pressure transducer such that when the pressure transducer indicates a pressure that corresponds to a liquid level that is at least as low as the start level elevation, the pump is activated for a period of time to discharge a predetermined quantity of liquid, referred to as a clearing dose, wherein one or more clearing doses are executed to lower the liquid level to a level below the zero reference level so that the lower opening is above the liquid level, and the interior air chamber is in communication with the upper layer of air;
• and
• locating the pressure transducer outside the liquid storage tank and providing an elongated tubular member to facilitate communication between the pressure transducer and the interior air chamber.

A method of making pneumatic pump control system for controlling the on and off switching of an electrically operated pump disposed in a liquid storage tank provided for receiving waste liquids and solids disposed below an upper layer of air, the method comprising the steps:

• fixing a pneumatic pressure accumulator at a predetermined level within the liquid storage tank, the pneumatic pressure accumulator defining an interior air chamber for containing air, and a lower opening disposed at an elevation that represents a zero reference level, the air chamber being in communication with the liquids in the liquid storage tank when the level of the liquids are as high as the lower opening;
• connecting a pressure transducer to the pneumatic pressure accumulator for communication therebetween to measure the differential air pressure between the air within the interior air chamber and the upper layer of air within the liquid storage tank, wherein the pressure transducer is adapted to generate an electric output signal that corresponds to the differential air pressure;
• providing a first activation means responsive to the output signal of the pressure transducer such that when the pressure transducer indicates a pressure that corresponds to a liquid level that has risen above a predetermined start-level elevation within the liquid storage tank, the pump is activated for a period of time to discharge a predetermined quantity of liquid, referred to as a normal dose, wherein at least one normal doses is executed to lower the liquid level to a level at least as low as the start-level elevation;
• and
• providing a clearing activation means responsive to the output signal of the pressure transducer such that when the pressure transducer indicates a pressure that corresponds to a liquid level that is at least as low as the start level elevation, the pump is activated for a period of time to discharge a predetermined quantity of liquid, referred to as a clearing dose, wherein one or more clearing doses are executed to lower the liquid level to a level below the zero reference level so that the lower opening is above the liquid level, and the interior air chamber is in communication with the upper layer of air;
• and
• wherein the pneumatic pressure accumulator comprises an accumulator dome defining an upper end cap, and a coupling collar that extends upward from the upper end cap to define a void for receiving the pressure transducer, wherein the pressure transducer is disposed adjacent the interior air chamber of the pneumatic pressure accumulator within the coupling collar for communication with the interior air chamber.