The present invention relates to a system and method for moving samples, such as fluid, within a microfluidic system using a plurality of gas actuators for applying pressure at different locations within the microfluidic. The system includes a substrate which forms a fluid network through which fluid flows, and a plurality of gas actuators integral with the substrate. One such gas actuator is coupled to the network at a first location for providing gas pressure to move a microfluidic sample within the network. Another gas actuator is coupled to the network at a second location for providing gas pressure to further move at least a portion of the microfluidic sample within the network. A valve is coupled to the microfluidic network so that, when the valve is closed, it substantially isolates the second gas actuator from the first gas actuator.

The present disclosure relates to a portable pressure container for driving a medical device. The container includes a pressure housing confining an interior volume and a pressure outlet extending through the pressure housing . The interior volume comprises a liquid storage portion and a gas storage portion. The liquid storage portion and the gas storage portion are in flow connection with each other. The liquid storage portion is configured to store a liquid phase of a driving medium. The gas storage portion is configured to store a gas phase of the driving medium. The pressure outlet is only in flow connection with the gas storage portion.

The present disclosure relates to a portable pressure container for driving a medical device. The container includes a pressure housing confining an interior volume and a pressure outlet extending through the pressure housing . The interior volume comprises a liquid storage portion and a gas storage portion. The liquid storage portion and the gas storage portion are in flow connection with each other. The liquid storage portion is configured to store a liquid phase of a driving medium. The gas storage portion is configured to store a gas phase of the driving medium. The pressure outlet is only in flow connection with the gas storage portion.

In a linear displacement pump, liquid is discharged by driving a piston along at least part of a stroke length. While discharging the liquid, a linear position of the piston is sensed at a plurality of positions along the stroke length, and a plurality of output signals is produced. Based on one or more of the output signals, an operational state of the pump is determined.

In a linear displacement pump, liquid is discharged by driving a piston along at least part of a stroke length. While discharging the liquid, a linear position of the piston is sensed at a plurality of positions along the stroke length, and a plurality of output signals is produced. Based on one or more of the output signals, an operational state of the pump is determined.

The pumping installation (16) comprises a pneumatic pump (22) for pumping a fluid (12) and a system (24) for supplying the pneumatic pump (22) with compressed gas. The supply system (24) comprises a source (34) of compressed gas and a fluidic connection (36) that fluidly connects the source (34) to the pneumatic pump (22). The pumping installation (16) also comprises a system (38) for controlling the supply of the compressed gas to the pneumatic pump (22), wherein the control system (38) comprises a valve (40) mounted on the fluidic connection (36) and switchable between a blocking state, in which the valve (40) prevents the flow of compressed gas between the source (34) and the pneumatic pump (22), and a passing state, in which the valve (40) allows the circulation of compressed gas between the source (34) and the pneumatic pump (22).

The pumping installation (16) comprises a pneumatic pump (22) for pumping a fluid (12) and a system (24) for supplying the pneumatic pump (22) with compressed gas. The supply system (24) comprises a source (34) of compressed gas and a fluidic connection (36) that fluidly connects the source (34) to the pneumatic pump (22). The pumping installation (16) also comprises a system (38) for controlling the supply of the compressed gas to the pneumatic pump (22), wherein the control system (38) comprises a valve (40) mounted on the fluidic connection (36) and switchable between a blocking state, in which the valve (40) prevents the flow of compressed gas between the source (34) and the pneumatic pump (22), and a passing state, in which the valve (40) allows the circulation of compressed gas between the source (34) and the pneumatic pump (22).

A vacuum pump arrangement for a milking plant includes a main vacuum conduit with at least two vacuum pump units for maintaining a system vacuum in the main vacuum conduit. Each of the vacuum pump units includes a pump, a vacuum tank connected to the pump by an intermediate conduit, and an inlet conduit connecting the vacuum tank to the main vacuum conduit. A drainage extends from the vacuum tank and includes a draining valve. The pump sucks air from the main vacuum conduit via the inlet conduit, the vacuum tank and the intermediate conduit. The vacuum pump unit includes a closing valve provided on the inlet conduit and configured to close the inlet conduit in an automatic manner when the pump has been stopped.

My invention is related with submersible pumps which use for agricultural irrigation can run with compressed air instead of only electric power. Thanks to my invention the submersible pump motor that can run with compressed air will not need directly electric power.

In accordance with presently disclosed embodiments, a system and method for distributing electrical or other forms of power, fluids, data, fuel, and combinations thereof for performing hydraulic well stimulation treatments is provided. The disclosed distribution unit may include an arrangement of distribution lines (e.g., cables or fluid conduits) disposed within a body of the distribution unit for routing various resources between connection points used to connect the distribution unit to nearby stimulation equipment. The manifolded distribution unit provides convenient and efficient routing of power, fuel, data, and other items needed by equipment disposed about a well site.