Abstract: A pump assembly is disclosed. The pump assembly including a pump having an outer casing having a first end, an opposing second end, and a cavity therein and a multi-function valve connected to the first end of the pump. The pump further including a discharge tube positioned in the cavity and exiting the first end of the outer casing; a check valve positioned in the cavity and operably connected to the discharge tube by a coupling; and a multi-float control assembly positioned in the cavity, the multi float control assembly including a bottom float check valve operably connected to the discharge tube by the coupling and an upper float check valve connected to a vent exiting the first end of the outer casing.

Abstract: A system is provided to control fluid flow in a wastewater treatment system through wastewater level manipulation. The wastewater treatment system may include a wastewater treatment plant connected to a plurality of pump stations by a main. Each of the plurality of pump stations may include a wet well with a pump therein. The system may include a central server in communication with a sensor to sense a level of wastewater within the wet well. The pump may be automatically moved to an on position when the level of the wastewater in the wet well is at or above a first level and may be automatically moved to an off position when the level of the wastewater in the respective wet well is at or below a pump cutoff level. The central server may systematically manipulate the first level to selectively set the level of wastewater within the wet well.

Abstract: Reductions in energy consumption and maintenance requirements for operating a wastewater treatment plant are achieved by controlling the operation of pumps at pump stations along a force main in a systematic fashion. The operation of the pumps is controlled to manage the flow of wastewater along the force main to minimize energy consumption, to eliminate sediment, to manage peak pressures encountered by smaller pumps and to avoid septic conditions.

Abstract: The present invention is directed to a gas pressure driven liquid pump having a pump body, liquid inlet, liquid outlet, a pair of pump mechanisms each including a float, and a baffle within the pump body creating two chambers within the pump body. A separate pump mechanism is configured to operate in the respective chambers. The baffle includes a void located below a low liquid level position so that a liquid seal is maintained between the two chambers. As the pump body fills with liquid condensate, a high liquid level position will trigger the respective pump mechanisms to allow motive gas into the chambers, pumping the liquid out of the pump body.

Abstract: A pumping device includes a container having a cover structure. A piston is movably received in the container and is manually operable. The cover structure has an air inlet valve and a slide switch, which, when properly set, allow air to be sucked into or expelled out of the container by the manual operation of the piston to increase or decrease the internal pressure of the container for oil suction and oil drainage. The pumping device also includes another slide switch, whereby when both slide switches are properly set, the internal pressure of the container is increased or decreased due to the supply of pressurized air from an external source and oil can be sucked into and drained out of the container accordingly.

Abstract: A working method of a bar block with a plurality of magnetic head elements and a plurality of pairs of electrode terminals electrically connected to the plurality of magnetic head elements arranged on an element-formed surface of the bar block in at least one line. This method includes a step of pre-laminating an ACF on the element-formed surface of the bar block, a step of bonding a conductive plate member with a plurality of projections located at positions faced to the plurality of pairs of terminal electrodes of the bar block, respectively, on the ACF so that each pair of the terminal electrodes is electrically short-circuited with each other, and a step of, then, working the bar block.

Abstract: A compressed air-actuated pump includes a venturi nozzle (24) to create a vacuum condition within a fluid-tight pump body or chamber (8) to pump in a liquid or slurry from a remote location. When a given level of liquid is pumped in, a float mechanism (69, 97, 101) actuates a magnetic air valve (60) which actuates a diverter valve (40) whereby the pressurized air from the venturi nozzle is diverted into the pump body to create a pressurized condition therein, whereby the liquid or slurry previously accumulated therein is pumped out. The magnetic actuated valve and diverter valve controlled thereby insures that the desired amount of liquid or slurry is always discharged from the pump chamber during each pressure cycle, and drawn into the chamber during the suction or fill cycle.

Abstract: A liquid flow control apparatus (5) suitable for handling milk from a milking machine, comprising a first chamber (10) that comprises an inlet (11) for the milk, an outlet (12) for connecting to a vacuum pump, and an outlet (14) for the milk to flow by gravity to a second chamber (13). The first chamber (10) and the second chamber (13) are in communication with each other by means of the outlet (14) at the bottom of the first chamber (10). The second chamber (13) has a float valve (23) that closes off communication between the first chamber (10) and the second chamber (13) depending on the level of liquid in the second chamber (13). A conduit tube (18) for air communication is disposed between the first chamber (10) and the second chamber (13). A second float valve (17b) closes off communication via the conduit tube (18) between the two chambers. A third chamber (21) has two valves with one valve (26) opening to the atmosphere and a second valve (20) opening to the second chamber (13).

Abstract: A pneumatic pump having a variable buoyant actuator to substantially reduce the volume of a float, thereby increasing the fluid capacity for any pump of a given size. The pump includes an elongated housing, a sealable fluid entry aperture and a pipe communicating between an interior and an exterior of the housing. The housing includes a bottom wall and a cylindrical side wall extending from the bottom wall and terminating in an opening. A switchable valve control having a pod closes the opening. The pod has a plurality of valve seats and a plurality of corresponding valve elements, with the plurality of valve seats defining fluid inlet and output ports. The actuator is coupled to alternatingly placed valve elements in sealing engagement with fluid inlet and outlet ports in response to a level of fluid in the housing. The variable buoyant actuator includes first buoyant member disposed proximate to the bottom wall, and a buoyant amplifier disposed opposite to the first buoyant member, proximate to the pod.

Abstract: The present invention discloses a method and apparatus for a well testing or production facility system. More particularly, but not by way of limitation, the invention discloses a method and apparatus to transfer crude oil from a separator to an oil pipeline, or alternatively, to a burner flare. The method includes collecting oil in a separator, and then transferring the oil to a first, second, and third pump cylinder. The oil is sequentially forced from the cylinders by high pressure gas, and after being drained, the cylinders are again filled with crude oil. The apparatus includes a separator, a first, second and third pump cylinder which will sequentially receive crude oil. Sensing means are associated with the pump cylinders for sensing the level of crude oil within the cylinders. A control system is utilized to cycle a high pressure gas or air into each of the cylinders in order to force the oil out of the cylinders.