Abstract: A microfluidic cartridge with solution reservoir-pump chamber is disclosed. The microfluidic cartridge comprises a channel-chamber layer, a sealing layer, a printed circuit board bound with magnetoresistive biochip. The channel-chamber layer includes at least a waste reservoir, a reaction-detection chamber, a solution reservoir-pump chamber and a plurality of micro-channels. Said solution reservoir-pump chamber realizes both functions of solution reservoir and pump chamber in a single structure. Said sealing layer is sealed with said channel-chamber layer to form an integrated microfluidic system with at least a waste reservoir, a reaction-detection chamber, a solution inlet, a solution reservoir-pump chamber and a micro-channel. Said solution reservoir-pump chamber in the present invention consists of elastic objects inside for sealing and pumping. Under pressure, said elastic object propels solution in the reservoir into said reaction-detection chamber via channels of said plurality of micro-channels.

Abstract: A process which can be used in the laboratory or on an industrial scale for cleaning the inner wall of hard gelatine capsules, in which the sealed capsules are cleaned with a powder formulation.

Abstract: A pump for conveying a medium, in particular hydraulic oil, comprising a flow-control valve for controlling the flow of medium conveyed by the pump and a discharge channel (7) releasable by the flow-control valve. In order to prevent cavitation, a flow divider (17) is provided for dividing the discharge jet flowing into the discharge channel (7) and extends into the said discharge channel (7), and is spaced by a distance (a) from an orifice (9) of the discharge channel (7) facing the flow-control valve.

Abstract: A draining gutter, which is adapted to be placed in a floor of a space inside a building for conducting drain water away from the space through a draining conduit (3) connected thereto, has channel (15) adapted to conduct air from the space to the draining conduit upon influence of air present in the conduit away from the space. The draining gutter has also an arrangement (11, 13, 14) for adjusting the air flow resistance of the channel.

Abstract: A hydrostatic drain plug/outlet assembly comprises a hollow body (1) with an inlet port and an outlet port for connection to a fluid conduit. A slidable valve member (6) is movable between a locked open position and a locked closed position via an intermediate position at which the valve member (6) is urged into sealing engagement with a sealing member (3) by a spring (21) which supports a hydrostatic pressure of predetermined magnitude beyond which excess hydrostatic pressure is relieved by the valve member to prevent fluid overflow in a vessel. The valve member is moved between the locked open position and the locked closed position by rotation of valve member (6).

Abstract: A drip irrigation emitter or device comprising a flow restrictor helical thread on the outside of a main body, and a cap member that fits over the thread. Water is supplied to the interior of the main body and must flow through a narrow, annular passageway formed by the cap before the water flows through provided restrictor orifices, so no large particles are carried into the orifices or the helical thread to minimize plugging. The water discharges adjacent to the water tube or hose to minimize root intrusion into the irrigation device, and baffles also are provided to minimize root intrusion. The cap can be loosened or removed to flush the thread if foreign material enters the thread.

Abstract: There is disclosed apparatus and method for determining pumping head requirements for an operating pumping system by subtracting a desired delivery head or pressure from an actual head. The difference represents overpressure, and this overpressure is subtracted from a measured pump total dynamic head to establish the pumping head requirement of the system. The pumping head requirement data is recorded together with other data indicating a measured fluid flow rate. The data so recorded is in a form for plotting a system head curve. Once the system head curve is available it is possible to modify the supply system so as to avoid pumping at a pressure in excess of that which may be required for any given flow rate condition. Such avoidance of overpressure pumping produces an energy saving in the operation of the pumping system.