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WO/2000/056443A1 |
The invention relates to a device for applying at least one micro-droplet on a substrate (2), comprising a dosing head body (8) having at least one dosing hole (14). A drive device (4) is provided to impinge upon the dosing head (8) and ...
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WO/2000/056442A1 |
The invention relates to a fluids manipulation device comprising a substrate (20) having a first surface (21) and a second surface (23). A plurality of fluid inlets (28), preferably media reservoirs, following a first pattern is formed o...
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WO/2000/055502A1 |
An electrokinetic high pressure hydraulic pump for manipulating fluids in capillary-based systems includes (i) a microchannel having a fluid inlet and outlet and a porous dielectric material disposed in said microchannel; (ii) an electro...
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WO2000021659A9 |
A multilayered microfluidic device having a substantially monolithic structure is formed by sintering together a plurality of green-sheet layers. The substantially monolithic structure has an inlet port for receiving fluid, an outlet por...
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WO/2000/051221A1 |
The invention relates to a device (1) for generating electrical power, comprising an inertia mass (3) which is placed in a frame or a housing (2) in such a way that it can oscillate and a first generator (4) which is connected thereto an...
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WO/2000/045051A2 |
A micro-pump pumps either electrically conductive or non-conductive liquids through channels of the micro-pump and/or micro-devices. A conductive or non-conductive liquid, depending on the specific application of the present invention, i...
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WO/2000/034654A1 |
The present invention relates to a method for pumping gas-liquid mixtures and to a piston pump characterised in that a gas-liquid mixture is fed into a working chamber during the suction stroke and the compression stroke of the gas, wher...
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WO/2000/007735A2 |
Disclosed are micromachined acoustic ejector (12) for generating a jet stream (24) using a Helmholtz resonator (14), applications for the ejector (12) in microflight, active heat sinking and fluid pumping, and methods of manufacturing th...
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WO/2000/006890A1 |
A pump for pumping fluid including: a pump body (7) having a pumping chamber (14) therein; an inlet control means (23) adapted to be in fluid communication with a fluid supply means for supplying fluid to the pump; and an outlet control ...
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WO/2000/006900A1 |
An improved vibration-actuated pump (39) for a vibrating machine (11) includes operative ends (39a, 39b), each of which has an end block (51, 59) with a fluid path therethrough comprised of a fluid inlet (53, 61), fluid outlet (55, 63) a...
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WO/1999/055283A1 |
In a spa water circulation system, the spa (200) including wall structure (201) facing toward a water reception zone (202) and comprising a plurality of water pumps (203) associated with the wall structure, the pumps spaced about the zon...
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WO/1999/050524A2 |
A positive-displacement pump (102) includes multiple pumping elements (355, 356). Each pumping element having a pressure vessel (356) with a first (372) and a second (370) chamber and a separating member (362) disposed between the first ...
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WO/1999/049173A1 |
A rotating diverter (108) for isolating fluid in a well (30) from other fluid above the well (30) is provided. The rotating diverter (108) includes a housing body (162) which has a bore (168) running through it. A retrievable spindle ass...
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WO/1999/049172A1 |
A system (10) for drilling a subsea well (30) from a rig (20) through a subsea wellhead below the rig (20) includes a wellhead stack (37) which is mounted on the subsea wellhead. The wellhead stack (37) comprises at least a subsea blowou...
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WO/1999/037400A1 |
The invention relates to a microdosing device which does not have a volume sensor. The inventive device comprises a pressure chamber (24) which is at least partially limited by a displacement element (10), and an actuating device (30; 60...
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WO/1999/034115A1 |
A pump including a main body (100) having a compression chamber (140) compressing a fluid or gas applied through an intake (111), and then forcing it out through an outlet (121); a plate (210) formed within the main body (100); conical p...
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WO/1999/024744A1 |
A micromachined fluid handling device (600) includes a valve (138) made of reinforced parylene. A heater (440) heats a fluid to expand a thermopneumatic fluid (442). The heater (440) is formed on unsupported silicon nitride to provide a ...
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WO/1999/016162A1 |
The present invention generally provides a micropump (100) that utilizes electro-osmotic pumping of fluid in one channel or region (106) to generate a pressure based flow of material in a connected channel (104), where the connected chan...
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WO/1999/004140A1 |
A volumetric-displacement-maximizing device includes a molded slider (12) bidirectionally movable within an elongate cavity (14) formed within a molded body (16). The body (16) also includes a port structure (18) with an output port (18a...
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WO/1998/051999A1 |
A print array (240) incorporates reservoir(s) (412A, 412B, 412C), in a reservoir layer (410), microchannels (422A) in a distribution layer (420), and electrohydrodynamic pumps (434) having a pair of electrodes (436) for selectively dispe...
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WO/1998/052034A1 |
Pulse-free flow, for instance for capillary chromatography, is provided by a pump comprised of a length of heat transmissive tubing filled with a liquid that undergoes thermal expansion upon heating, in conjunction with a heating device ...
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WO/1998/050787A1 |
The invention provides an electrode-based pump (4) having a source of pumped fluid (1), a conduit channel (2A) of capillary dimensions connected via a first end to the pumped fluid source and having an outlet at a second end, a piston ch...
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WO/1998/044262A1 |
The present invention relates to jet blowing techniques and is characterized in that, after the required pressure value of a gas medium at the input of a jet blower is obtained, the ratio value of the feeding pressure of the liquid mediu...
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WO/1998/042981A1 |
The invention relates to a combined wind and solar power installation with particularly high availability. In accordance with the invention, an operating shaft is driven by both a vertically turning wind rotor and by an electric motor fe...
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WO/1998/036832A1 |
The invention relates to a microdosing device comprising a pressure chamber (24) which is at least partly delimited by a displacer (10), an actuating device (30) for actuating the displacer (10), whereby actuation of said displacer (10) ...
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WO/1998/024544A1 |
Methods of manufacture and devices for performing active biological operations utilize laminated structures (30, 110). In the preferred embodiment, a first planar sample support (50, 72, 104, 122) includes at least one sample through hol...
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WO/1998/016739A2 |
A fluid displacement system comprising a pressure vessel (2), an expansion vessel (4), first and second tubes (6, 8) being each in flow communication with the two vessels, fluid contained within the system, and an energy source (30) of g...
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WO/1998/000705A1 |
A channel (140) is divised into portions (142, 144). The sidewalls of each channel portion (142, 144) have surface charges of opposite polarity. The two channel portions (142, 144) are physically connected together by a salt bridge (133)...
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WO/1997/043629A1 |
The invention provides methods of performing a synthetic process in a liquid distribution system (300, 310 and 320) having reaction cells (in 320), by pumping at least one reagent into a reaction cell using an electrode-based pump (360).
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WO/1997/040273A1 |
The stator, rotor and/or flex shaft of a progressive cavity pump is made up of composite materials, e.g., fiberglass and resin, in a variety of combinations with and without bonded resilient elastomers. The composites are formulated to p...
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WO/1997/029283A1 |
A micropump (11) comprising at least two first wafer means (10, 12) defining a pump chamber (9), and a filter including liquid supply means, liquid collecting means, second wafer means (10) and silicon wafer means (12; 15), are disclosed...
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WO/1997/024528A2 |
A pumping apparatus has a body portion with a chamber and channels (112) for receiving fluid that has entered the chamber through an opening (104) in the body portion. The chamber is covered by a membrane and the channels terminate in or...
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WO/1997/022806A1 |
A device for moving a liquid, particularly under low gravity conditions, is disclosed. The device includes means (2) for holding a liquid (6), which holding means have at least one inner wall provided with grooves (11) and made of a mate...
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WO/1997/010435A2 |
A fluid pump comprising a pump housing, a displacer and an elastic membrane. The displacer can be placed in a first and second end position by means of a drive unit. The displacer and the pump housing are so laid out that there is betwee...
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WO/1997/004233A1 |
An axial piston micropump (100) is disclosed, having a cylinder drum (2), in which several cylinders (41, 42) are provided, and a swash plate (1), with respect to which the cylinder drum (2) is rotatable. It is desirable for such a micro...
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WO/1996/042004A2 |
A system and method for accomplishing a plurality of combinatorial processes in parallel comprising a microelectronic and fluidic array (device array) having reservoirs, connecting microchannels and reaction cells etched into a substrate...
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WO/1996/039252A1 |
The invention provides electrode-based pumps (803) and methods of operating such pumps. In one embodiment, the invention provides an electrode-based pump situated in a fluid channel comprising a first electrode (801A) and a second electr...
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WO/1996/039260A1 |
The present invention provides a method of forming a fluid-tight electrical conduit through a high aspect ratio hole, the method comprising sintering a via ink to form the electrical conduit and to seal the hole.
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WO/1996/021108A1 |
The present invention concerns a pump for conveying a medium, in particular a gas-liquid mixture, said pump comprising: a housing (3); a rotor (11) mounted in the housing (3); a hollow shaft (19) mounted in the housing and eccentrically ...
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WO/1996/017172A1 |
An integrated microactuator including a gas-containing cavity (4) within at least one layer (1, 2, 3) of photolithographically machinable material, electrodes (13, 15, 16) for generating an electric field inside the cavity (4) that can c...
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WO/1996/015576A1 |
The present invention provides a liquid distribution system, which is useful in a number of contexts, including in accomplishing various synthetic, diagnostic and drug screening reactions. The distribution system can comprise an alpha re...
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WO/1996/000849A1 |
Known micropumps are characterised by a relatively complex design that in general is difficult to produce and mount. In addition, the pump capacities they can achieve are limited. A new micropump should have a more simple design that is ...
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WO/1995/025223A1 |
An electromagnetic pump comprising a housing having a fluid receiving chamber (14) in communication with an inlet (18), a fluid pumping chamber (16) in fluid communication with an outlet (20), a check valve operatively associated with th...
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WO/1995/023000A2 |
In one embodiment described in the specification, a surgically implantable reciprocating pump employs a check valve as the piston, which is driven by a permanent magnet linear electric motor to assist either side of the natural heart. Th...
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WO/1995/012758A1 |
A central impeller (77) is sandwiched between fixed walls (19, 23) and is driven through a circular path of small radius, but is prevented from rotating by a ring-shaped shutter or slider (59) which surrounds and guides it. The shape of ...
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WO/1995/002764A1 |
A pump system for producing high and exactly controllable pressure levels includes a piston pump which has a piston (32) connecting to a spindle shaft (22), a spindle nut (44) on said spindle shaft, a cylinder block (34) having a bore (3...
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WO/1994/023201A2 |
Cryogenic fluid piston pump functions as stationary dispensing pump, mobile vehicle fuel pump etc., and can pump vapour and liquid efficiently even at negative feed pressures, thus permitting pump location outside a liquid container. Pis...
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WO/1994/020755A1 |
A mechanically simply battery operated air pump for one hand operation comprises a battery (1), a motor (2), a gear (3), a cylinder/piston pump (4), and a nozzle (5). The battery, the motor, the gear, and the cylinder/piston pump are arr...
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WO/1994/013488A1 |
The invention provides an ink jet printer provided with a maintenance station which is simple in construction and small-sized. A cap holder is provided with a suction port (28) communicating with a cap through a communication hole, a dis...
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WO/1994/012285A2 |
A device for comminuting a liquid, which comprises at least two electrohydrodynamic comminution means (24) arranged so that in use comminution of opposing polarity are formed which are substantially admixed after formation and a pump (22...
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