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Patent Searching and Data


Matches 301 - 350 out of 2,915

Document Document Title
WO2002062517A3
A machining method for an integrated piping plate 201, for example, composed of a plurality of plates joined together, and in which an instrument and a component constituting an apparatus, or the instrument, or the component are or is di...  
WO2003052081A3
The present invention provides a proportional microvalve (10) having a first (12), second (14) and third layer (16), and having high aspect ratio geometries. The first layer defines a cavity with inlet (20) and outlet ports (22). The sec...  
WO2003089138A3
A microfluidic device which is actuated by a piezo electric actuator. A microfluidic structure which comprises sequentially (i) a substrate through which there are a plurality of conduits (ii) a first layer of elastomeric material having...  
WO/2003/098218A1
Methods and apparatus are presented for controlling fluid flow with pressure gradient fluid control. Passive fluid flow barriers may be used to act as valves, thereby allowing the flow of fluids through flow paths to be regulated so as t...  
WO/2003/098053A1
A valve system (10) controls the fluid flow between an inlet (12) and an outlet (14). The system (10) splits the flow into two parallel flow ducts (15, 16) and recombines the flows through opposed tangential inlets (18) and (19) of a flu...  
WO2002022492A8
A MEMS valve device driven by electrostatic forces is provided. The MEMS valve device includes a substrate having an aperture formed therein, a substrate electrode, a moveable membrane that overlies the aperture and has an electrode elem...  
WO/2003/089157A1
A method and apparatus for sorting particles moving through a closed channel system of capillary size (Fig.1) comprises a bubble valve (25) for selectively generating a pressure pulse to separate a particle (18b) having a predetermined c...  
WO/2003/088733A2
A microfluidic system includes a bubble valve for regulating fluid flow through a microchannel (21). The bubble valve includes a fluid meniscus interfacing the microchannel (21) interior and an actuator (50) for deflecting the membrane (...  
WO/2003/089138A2
A microfluidic device which is actuated by a piezo electric actuator. A microfluidic structure which comprises sequentially (i) a substrate through which there are a plurality of conduits (ii) a first layer of elastomeric material having...  
WO/2003/081052A1
An actuator for a component such as a valve or pump comprises a chamber or capsule (30) of a flexible material, which chamber or capsule (30) is mounted on a substrate (18). Within the capsule (30) is a quantity of thermopneumatic materi...  
WO/2003/081762A1
The invention describes devices for performing thermodynamic work on a fluid, such as pumps (340), compressors and fans. The thermodynamic work may be used to provide a driving force for moving the fluid. Work performed on the fluid may ...  
WO2003011460A3
A microfluidic device (10) and method using the same is provided for self-regulating the flow of fluid therethrough. The device (10) includes a body (12) defining first and second flow channels (14, 24). The first flow channel (14) has a...  
WO/2003/078874A2
A microfluidic delivery system substrate (1) is coated with ultra-nanocrystalline diamond (UNCD) or with a thin ceramic film, such as alumina or zirconia, that is applied by ion-beam assisted deposition; assuring that the device is imper...  
WO2002065005A9
Valve structures (100) formed in elastomer material (108) are electrostatically actuated by applying voltage to a flexible, electrically conductive wire pattern. An actuation force generated between the patterned wire structure and an el...  
WO/2003/076331A2
The invention relates to a method for producing micro-mechanical components, containing at least one elastic spring tongue, whereby said spring tongue is produced especially by means of electrodeposition, sputtering, evaporating and/or e...  
WO2002081085A3
Microfluidic devices and methods for performing a microfluidic process are presented. A microfluidic device conforms with a standard well plate format. The device includes a well plate comprising a plate and an array of wells formed on o...  
WO2003020946A9
There is disclosed a method providing micro-scale devices, nano-scale devices, or devices having both nano-scale and micro-scale features. The method of the invention comprises fluidic assembly and various novel devices produced thereby....  
WO2002097865A3
A valve (10(1) or 10(2)) which has a structure with at least one opening (14(1) or 14(2)) and a member (16) which has a fixed static charge and also has a first position exposing the opening (14(1) or 14(2)) and a second position sealing...  
WO/2003/068670A2
A valve (105) controls fluid flow in a microfluidic system (100). The valve (105) has an input port adapted to receive fluid exerting a predetermined level of pressure on the valve (105) and an output port. The valve (105) has a variable...  
WO/2003/069167A1
The invention relates to a U-shaped pipe, more particularly to an closed circulating line for central heating and refrigeration in which fluid medium serves as 'energy' carrier, and an open-type mass circulation pipe for water or gas. Th...  
WO/2003/060331A1
Disclosed is an electrically controlled valve, particularly a pneumatic valve, configured as a flat structure and comprising a plate (P) made of several parallel layers, i.e. one electricity conducting layer (1) forming a first electrode...  
WO2002092497A3
The invention is a method for fabricating molecular filters (20) which can separate objects approximately 1-5 nm in range, where the filtration size is controlled by using thin films of materials and technologies to form a filtration cha...  
WO/2003/055590A2
A substrate having a surface with reversibly switchable properties. The surface comprises a nanolayer of a material that switches from a first conformation stateto a second conformation state when an external stimulus is applied. When th...  
WO2002034195A9
a backload-responsive fluidic switch having high pressure recovery of more than 50% comprises a body member with a power nozzle (PN) having a width W and a centerline CL which is adapted to be coupled to a source of fluid under pressure ...  
WO/2003/052081A2
The present invention provides a proportional microvalve (10) having a first (12), second (14) and third layer (16), and having high aspect ratio geometries. The first layer defines a cavity with inlet (20) and outlet ports (22). The sec...  
WO2003001215A3
A valve block (1) for a dosing device, with an arrangement of piston pipettes (2) or other dosing means, comprises, on the one side thereof, a pattern of openings (15) which may be placed on the arrangement of piston pipettes (2) and, on...  
WO/2003/052428A1
A three-dimensional microfluidic device (100) formed from a plurality of substantially planar layers (101, 102, 103) sealed together is disclosed.  
WO2002034195A8
a backload-responsive fluidic switch having high pressure recovery of more than 50% comprises a body member with a power nozzle (PN) having a width W and a centerline CL which is adapted to be coupled to a source of fluid under pressure ...  
WO/2003/046256A1
A microfluidic system and method, suitable for 'lab−on−a−chip' applications, by which a bubble is inflated in fluid flowing through a microfluidic channel at a predetermined location along the channel and the bubble is maintained a...  
WO2002060582A9
The present invention provides microfluidic devices, systems and methods for using the same, which facilitate the introduction of fluid to and from a microfluidic channel located within the microfluidic devices.  
WO/2003/044817A1
A circuit switching switch (60) having a drive device (10), comprising ceramic pumps (18a) and (18b), wherein a conductive movable body (110) is moved in a flow passage (13a) by alternately pressurizing and depressurizing, by the pumps, ...  
WO/2003/036103A1
A connector is provided for selectively coupling one or more lines or wires (19', 19'') to a receiving and/or transporting device (27). The connector comprises at least one line or wire receiving ferrule (7) having a plurality of line an...  
WO/2003/033399A1
A drive device (10), comprising ceramic pumps (18a) and (18b), wherein working fluid (100) in a flow passage (13a) is alternately pressurized and depressurized by the ceramic pumps on the left and right sides of a movable body (110) to m...  
WO2002081935A3
The present invention provides microfabricated fluidic systems and methods. Microfabricated fluidic devices of the present invention include switches (232, 233) that can be opened and closed to allow or block the flow of fluid through a ...  
WO/2003/031828A1
A method for setting or actuating a micro valve for use in fluidic applications comprising the steps of cooling an array of actuating members made of SMA material, to a temperature equal or below the temperature at which a transformation...  
WO2002091028A3
The present invention relates to the use colloidal particles to realize photonic and microfluidic devices. In particular embodiments, colloidal particles are used to realize microfluidic a two-way valve, three-way valve, check valve, thr...  
WO2002060582A3
The present invention provides microfluidic devices, systems and methods for using the same, which facilitate the introduction of fluid to and from a microfluidic channel located within the microfluidic devices.  
WO/2003/027508A1
Low power integrated pumping and valving arrays which provide a revolutionary approach for performing pumping and valving approach for performing pumping and valving operations in microfabricated fluidic systems for applications such as ...  
WO2002043615A3
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...  
WO/2003/020946A2
There is disclosed a method providing micro-scale devices, nano-scale devices, or devices having both nano-scale and micro-scale features. The method of the invention comprises fluidic assembly and various novel devices produced thereby....  
WO2002055198A3
Various microfluidic flow control devices are provided. In one embodiment, a regulating device includes overlapping channel segments (139,143) separated by a deformable membrane (133) in fluid communication with one another. In another e...  
WO2002094440A3
A microchip integrated microfabricated, microfluidic, multichannel, preferably electroosmotic pump. The pump (10) comprising a plurality of microchannels (12), which begin and end in common compartments (14, 16), complexed into an array....  
WO2002053290A3
The present invention relates to microfluidic systems, including valves (12) and pumps for microfluidic systems. The valves of the invention include check valves (30) such as diaphragm valves and flap valves. Other valves of the inventio...  
WO/2003/012325A1
A valve (50) includes a substrate defining an upstream channel (52) and a downstream channel (54) joined by a conduit defined by a first opposed wall (74) disposed at an angle to the central axis (60) of the upstream channel (52). At lea...  
WO/2003/012566A1
A microvalve device includes a first plate, a second plate and a third plate. The second plate is connected beetween the first plate and the third plate. The second plate contains a stationary element and a moveable plate valve slider el...  
WO/2003/011460A2
A microfluidic device (10) and method using the same is provided for self-regulating the flow of fluid therethrough. The device (10) includes a body (12) defining first and second flow channels (14, 24). The first flow channel (14) has a...  
WO2002082057A3
A microcytometer which combines lysing and cytometry into a unified system that achieves blood lysis and white blood cell count in a single device. The device focuses the white cells into a thin ribbon which is then focused into a single...  
WO2002068849A9
A microactuator device (12) includes a base (20) with at least one electrode pad (24) and a permeation membrane (18). Permeation membrane (18) is typically a water-permeable membrane that is able to deform by applying an electric charge ...  
WO2002081934A3
A pneumatic valve for use in laminated plastic microfluidic structures. This zero or low dead volume valve allows flow through microfluidic channels for use in mixing, dilution, particulate suspension and other techniques necessary for f...  
WO2002070932A3
A microvalve for regulating a flow of fluid is provided. The microvalve (201) has a first plate (205), a second plate (215), a sealing membrane (217), a spacer membrane (219), a third plate (227), an actuation membrane (229) and a piston...  

Matches 301 - 350 out of 2,915