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JP2004502926A |
A device for generating a stable concentration gradient in a microfluidic channel. A solution of a given concentration of a soluble compound and a diluting solution are co-delivered into a microfluidic channel. By varying the flow rates ...
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JP3483590B2 |
PURPOSE: To generate pulsated flow by accommodating a spherical moving element in a chamber equipped with an inlet and an outlet, and moving the moving element in response to the motion of a fluid in the chamber. CONSTITUTION: Water fed ...
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JP2003534504A |
A valve for use in laminated plastic microfluidic structures. The valve comprises first, second, and third layers of flexible material separated by first and second spacing layers to form microfluidic channels, and having an actuator sec...
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JP2003531018A |
The invention provides microfluidic devices with embedded fluidic impedances. Such impedances do not allow fluid to pass at a low differential pressure, but allow fluid to flow at a higher differential pressure. Impedances are formed by ...
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JP2003528276A |
A microvalve having a generally planar plate valve body defining a chamber and a plate valve member movable in the chamber about a pivot axis that is perpendicular to the valve body to control the flow of a fluid through the valve body. ...
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JP2003525101A |
Two reactions are carried out on a fluid in two chambers in a single card. The chambers are linked by a duct (5), which can be closed (8) to isolate them. This is done by pressing on a deformable tab (10) so its end (15) clips underneath...
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JP2003524738A |
A method of fabricating an elastomeric structure, comprising: forming a first elastomeric layer on top of a first micromachined mold, the first micromachined mold having a first raised protrusion which forms a first recess extending alon...
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JP2003227572A |
To provide a passive microvalve simplifying the whole manufacturing process and downsizing the whole of a system.This passive microvalve is provided with a substrate 1 having a first aperture 2. An upper plate 7a is mounted on the substr...
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JP3425522B2 |
To provide a nozzle assembly for generating a fine spray of droplets suitable, for example, for giving medication by inhalation and a method of manufacturing such nozzle assembly with a filter. The method of manufacturing plural nozzle a...
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JP2003175499A |
To form various shapes of micro grooves and filters in a fabricating method for an active micro-fluidic device.A mechanically stable support layer is formed over a layer of a etchable material, in a method of fabricating a microstructure...
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JP3419882B2 |
PURPOSE: To deliver precise volumes of fluids without responding to back pressure by separating a first and second inner conduit surrounded by a laminated plate structure by an inner plate layer, piercing plural holes through the laminat...
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JP3420241B2 |
PCT No. PCT/SE94/00824 Sec. 371 Date Mar. 6, 1996 Sec. 102(e) Date Mar. 6, 1996 PCT Filed Sep. 6, 1994 PCT Pub. No. WO95/07425 PCT Pub. Date Mar. 16, 1995A valve of the membrane valve type comprises a valve body with two fluid flow chann...
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JP3418741B2 |
The present invention relates to a microvalve usable primarily as a pilot valve in pneumatic controls. The prior art solenoid valves used in this field can be miniaturised only at considerably high cost. The microvalve of the invention c...
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JP3417767B2 |
To make it possible to realize a deep etching of 300μm or deeper in an Si single crystal substrate with good reproducibility and moreover, at a high yield by an anisotropic etching and to make it possible to contrive the enhancement of ...
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JP2003156157A |
To provide a micro-valve which is manufactured at high yielding.The micro-valve has a seat substrate (15) having a discharge port (70) and an opening (40) and in the micro-valve, the discharge port (70) and the opening (40) are formed th...
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JP3402635B2 |
PURPOSE: To obtain a very small flow channel element capable of supplying sufficient resolving power without requiring a filler, comprising a very small element which can separate a liquid by passing the liquid through the element wherei...
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JP3401788B2 |
A fluid controlling microdevice, such as a micropump or a microvalve, wherein a stepped portion (7) is provided on an intermediate base member (1) so that a height ratio of an upper chamber (8) to a lower chamber (9) which constitute par...
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JP2003511257A |
An electromechanical component consists of a polymeric body comprising a mechanically active part with a spring and a frame, and of a metal layer which encompasses the spring substantially completely so as to mechanically stabilize the s...
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JP2003511256A |
An electromechanical component consists of a polymeric body comprising a mechanically active part with a spring and a frame, and of a metal layer which encompasses the spring substantially completely so as to mechanically stabilize the s...
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JP2003510529A |
A device for controlling the proportional pressure or flow of fluids over a range of source pressure. An addressable array is interposed between a source pressure and an exit pressure chamber. The array comprises a plurality of valves, t...
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JP2003507162A |
A method for conducting a broad range of biochemical analyses or manipulatio ns on a series of nano- to subnanoliter reaction volumes and an apparatus for carrying out the same are disclosed. The method and apparatus are implemente d on ...
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JP2003506614A |
An apparatus for controlling a cooling air flow, in particular a gas turbine cooling air flow, is for the control, specific to requirement, of a cooling air flow using low-maintenance. A control fluid flow is introduced into the cooling ...
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JP3351795B2 |
Embodiments described herein relate to methods and structures for controlling a valve. One embodiment provides a valve control comprising a first valve fluidly connected with a first fluid conveying conduit and a second fluid conveying c...
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JP2002539918A |
A composition of a liquid (26) is caused to interact with a narrow band shaped area at a chosen position on a solid surface within a flow channel (12) by hydrodynamic focusing of a guided stream of said liquid between two streams of guid...
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JP2002538397A |
A fluid connector which provides a low fluid dead volume face seal capable of withstanding high pressures for coupling a fluid conduit to a microfluidic device. The fluid connector includes a housing, a clamping member, a first load supp...
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JP3336017B2 |
A method of producing a pump body having an inlet opening provided with an inlet valve (106) and an outlet opening provided with an outlet valve (108), said method comprising as a first step the step of structuring a respective first mai...
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JP2002533230A |
An actuator device providing an active surface. The actuator has a base having at least one first electrostatic electrode mounted therein which is oriented for electrostatic cooperative action with an opposing electrostatic electrode in ...
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JP2002533231A |
A connection coupling forms a line connection for liquid or gaseous substances to microcomponents (1) in platelet form. A coupling body (2), which is substantially U-shaped in cross section, accommodates the edge of the plate-like microc...
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JP3330253B2 |
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JP2002530827A |
A connection carrier for plate shaped micro-components, comprises at least one carrier rail (2) fixed to a carrier plate (3). The rail has a slot (4) for the insert edge (5) of a plate shaped micro-component (1). Connection lines are loc...
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JP2002527250A |
Methods of controlling fluid flow through microchannels by use of passive valves or stopping means in the microchannels is presented. The passive valves act as pressure barriers impeding flow of solution past the stopping means until eno...
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JP2002225183A |
To provide a membrane laminated film structure capable of separately determining and/or optimizing mechanical properties and electric or magnetic properties.The membrane laminated film structure 300 has the metal membrane 320 formed on t...
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JP2002227953A |
To maintain the traction coefficient(CT) at a roller-disc interface constantly below the limit at which traction is lost by changing end load in tune with changes in the net pressure applied by roller-control pistons.The variator control...
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JP2002523709A |
The invention relates to a miniaturized fluid flow switch which enables a directed deflection or deviation of a fluidic test current injected into a fluidic carrier current. The aim of the invention it to provide a fluid flow switch whic...
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JP3297755B2 |
PURPOSE: To obtain a microscopic rotating mechanism of a structure, wherein a rotator does never make a frictional contact with a rotating shaft not only in the axial direction but also in the radial direction at the time of stable rotat...
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JP3285863B2 |
PCT No. PCT/DE93/00493 Sec. 371 Date Dec. 16, 1994 Sec. 102(e) Date Dec. 16, 1994 PCT Filed Jun. 8, 1993 PCT Pub. No. WO94/00696 PCT Pub. Date Jan. 6, 1994The microvalve according to the invention is composed in a layered manner of at le...
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JP2002514717A |
A microvalve, which contains a valve member (7) dividing a valve chamber (13) into two chamber parts (14 and 15). A first chamber part (14) is delimited by a duct layer (3), which has an input flow opening (17) and at least one output fl...
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JP2002514520A |
The valve battery has an electronic control unit (7) for actuating the valves (5), which contains at least one function task unit (23) for the programmable groupwise functional logical linking of the valves. A fluid duct system (6) is pr...
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JP2002514716A |
The valve seat is located between an inlet opening and an outlet opening, with a connecting stub against which an elastic membrane presses. The membrane is disposed above a cavity and formed by a part of a polysilicon layer. When a mediu...
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JP3276373B2 |
A fluidic oscillator and a flow meter comprising a means (10, 14, 16) for forming an oscillating two-dimensional fluid jet, and an obstacle (22) having a main cavity (26) on which the oscillating jet impinges, and secondary cavities (34,...
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JP3272731B2 |
An actuator and a method of controlling the actuator are disclosed. In one embodiment, the actuator is a valve comprising a first port and a second port fluidly connected with the first port such that fluid communicates between the first...
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JP3273109B2 |
PURPOSE: To provide a method for carrying out feed back control so as not to cause control error by change in temperature when lifting and lowering control of reaping pretreating apparatus in a general purpose combine is carried out by p...
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JP2002504977A |
A thernopneumatic valve comprises a fluid channel plate defining a fluid port. A diaphragm plate is attached to the fluid channel plate. The diaphragm plate includes a displaceable diaphragm to selectively obstruct the fluid port of the ...
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JP2002503331A |
This invention relates to methods and apparatus for performing microanalytic and microsynthetic analyses and procedures. The invention provides a microsystem platform and a micromanipulation device for manipulating the platform that util...
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JP2002022045A |
To provide a compact valve device capable of relieving the mechanical stress.At least one oscillation control rocker member 12 acting for controlling at least one fluid duct openings 25a and 25b, and movable between two terminal position...
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JP3247132B2 |
PURPOSE: To provide a fluid element with a simple structure having a high responsiveness for changing over a flow path. CONSTITUTION: At least a pair of fluid discharging means 12, 13 disposed opposedly to each other and coaxially with t...
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JP2001527201A |
A fuel injector including a combustion air flow conduit, a fuel inlet and, swirlers to mix the air and fuel flowing therethrough, additionally comprising fluidic control diverters including at least one control port, such that flow of co...
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JP2001521105A |
The invention relates to a fluidic oscillator that is symmetrical about a longitudinal plane of symmetry, the oscillator comprising an opening enabling a fluid to enter into an "oscillation" chamber in the form of a two-dimensional fluid...
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JP2001518614A |
The movement and mixing of microdroplets through microchannels is described employing microscale devices, comprising microdroplet transport channels, reaction regions, electrophoresis modules, and radiation detectors. The discrete drople...
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JP2001518677A |
A MEMS actuator is provided that produces significant forces and displacements while consuming a reasonable amount of power. The MEMS actuator includes a microelectronic substrate, spaced apart supports on the substrate and a metallic ar...
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