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Patent Searching and Data


Matches 501 - 550 out of 2,914

Document Document Title
WO/2000/022436A1
Methods of controlling fluid flow through microchannels by use of passive valves or stopping means in the microchannels are presented. The passive valves act as pressure barriers impeding flow of solution past the stopping means until en...  
WO/2000/019161A1
A micromachined fluid control apparatus includes a micromachined boiler (52) with a thermally conductive housing that has a housing exterior surface and a housing interior surface. The housing interior surface defines an interior void th...  
WO/2000/013795A1
The invention concerns a device for performing a reaction or at least two reactions in parallel or in series, and for transferring a fluid flow, consisting of: an upper surface (2) and a lower surface (3) mutually linked by an edge (4); ...  
WO/2000/014415A2
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 (12) defines a cavity (24) with inlet (20) and outlet (22) port...  
WO/2000/012903A1
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...  
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...  
WO/1999/067539A1
An oscillator fin comprising: two members, said two members of an elliptical cross-section and placed transversely across a flow passage, wherein a major axis of said elliptical cross-section parallel to a direction of said flow passage ...  
WO/1999/066214A1
The invention concerns a fluidic oscillator (21) symmetrical relatively to a longitudinal plane of symmetry (P), comprising a chamber (25) delimiting an oscillation chamber (27) and having an inlet and an outlet (45) through which the fl...  
WO/1999/058841A1
The valve seat is located between the inlet (3) and the outlet (4), said valve seat having a gland (8) that is pressed by an elastic membrane preferably formed by part of a polysilicon layer and mounted above a cavity (2). Whenever a med...  
WO/1999/058859A1
The invention relates to a microvalve battery which comprises a plurality of microvalves (5) produced by a microstructuring method and is equipped with an electronic control device (7) containing at least one function-setting unit (23) f...  
WO/1999/058860A1
The invention relates to a microvalve comprising a valve element (7) which divides a valve chamber (13) into two partial chambers (14, 15). A first partial chamber (14) is delimited by a channel layer (3) which comprises an inflow openin...  
WO1999043899A3
Disclosed is a vortex valve flow control (1, 21) comprising a vortex chamber (3) having a inlet (4) for introducing a liquid into the vortex chamber (3) in a manner to promote swirl and an outlet (8) in one axial end of the vortex chambe...  
WO/1999/053205A1
The invention relates to a liquid flow amplification device comprising at least one micromechanic, fluidically regulated, flow amplifier (2) produced in a microstructuring process. The amplifier consists of a chamber defined by two strat...  
WO/1999/043899A2
Disclosed is a vortex valve flow control (1, 21) comprising a vortex chamber (3) having a inlet (4) for introducing a liquid into the vortex chamber (3) in a manner to promote swirl and an outlet (8) in one axial end of the vortex chambe...  
WO1999032828B1
A fuel injector (2) including a combustion air flow conduit, a fuel inlet (2.4) and means to mix the air and fuel flowing therethrough (2.2, 2.3, 2.6), additionally comprising fluidic control means (2.7) including at least one control po...  
WO/1999/039118A1
The present invention discloses various embodiments of a thin film fluid control system (10, 110, 220) for controlling fluid flow through tubular conduits (24, 124, 224). The system is designed such that a shape memory alloy (14, 114, 21...  
WO/1999/036720A1
The present invention relates to a valve (10) for controlling a flow of fluid, comprising: a valve housing (11) which has an inlet (12) and a first (13) and a second (13') outlet; a first (20) and a second (20') valve member which betwee...  
WO/1999/035347A1
Microdevices based on surface tension and wettability are useful as sensors, detectors, actuators, pumps, among other applications. As sensors and detectors they can respond to numerous stimuli such as pressure, temperature, gravity, rot...  
WO/1999/034269A1
A system for separating a liquid and a gas comprises a separation vessel (30) with an inlet (28) for the gas/liquid mixture. Outlets (40, 42) for the fluids are disposed at different heights in the vessel. The outlets are controlled by t...  
WO/1999/032828A1
A fuel injector (2) including a combustion air flow conduit, a fuel inlet (2.4) and means to mix the air and fuel flowing therethrough (2.2, 2.3, 2.6), additionally comprising fluidic control means (2.7) including at least one control po...  
WO/1999/032827A1
A flow controller (5) for supplying air to a combustor and a combustor incorporating the same are disclosed. The flow controller comprising a conduit (6, 7, 8) and a control port (9), the conduit including a main section (8) dividing int...  
WO/1999/031419A1
An open/close valve construction for use in solid-state fluid transport circuits having discrete fluid passageways (12a, 13a, 20) formed in rigid substrates (53, 56, 57) with a substrate land (58) between port regions of the fluid passag...  
WO/1999/026457A1
Briefly described, the present invention is concerned with cooling heating bodies and/or heated fluid with synthetic jet actuators (10) in either open or closed systems. A first preferred embodiment of a cooling system of the present inv...  
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 ...  
WO/1999/023437A1
The invention relates to an element with a microscopic surface pattern comprised of hydrophilic strips (4) and hydrophobic areas (6). Said hydrophobic areas are situated between said hydrophilic strips (4). The distances (c) between hydr...  
WO/1999/020906A1
The inventive coupling for microcomponents consists of several essentially plane parallel plates (1) with line connections (4) for delivering and discharging liquid or gaseous components. Said line connections (4) are mounted on a connec...  
WO/1999/020905A1
The invention concerns a fluid oscillator symmetrical relative to a longitudinal symmetry plane (P), comprising, an opening (22) for the fluid to penetrate into a chamber (24) called oscillation chamber in the form of a two-dimensional f...  
WO/1999/017749A1
A micro-valve (10) for fluid applications has been developed using the micro-fabrication technologies of bulk micro-machining, and LIGA high aspect ratio machining. Coupled with a magnetic micro-actuator (32), the operation of this micro...  
WO/1999/017093A1
The movement and mixing of microdroplets through microchannels is described employing microscale device. Sample and reagent are injected into the device through entry ports (A) and they are transported as discrete droplets through channe...  
WO/1999/016096A1
A MEMS actuator is provided that produces significant forces and displacements while consumming a reasonable amount of power. The MEMS actuator includes a microelectronic substrate, spaced apart supports on the substrate and a metallic a...  
WO/1999/001688A1
Thermal microvalves and their method of use include a fusible material (40) positioned in a microchannel (44). A heater (42) melts the material (40) which is then forced by air pressure (46) into a second channel (48) where it cools and ...  
WO/1998/053236A1
A thermopneumatic valve comprises a fluid channel plate (30) defining a fluid port. A diaphragm plate (28) is attached to the fluid channel plate. The diaphragm plate includes a displaceable diaphragm (44) to selectively obstruct the flu...  
WO/1998/051929A1
The invention relates to a micromembrane pump comprising a pump membrane (110; 122) which can be moved into a first and a second position by means of a drive device (100; 120) and a pump body (102; 104; 104') connected to said pump membr...  
WO/1998/051928A1
The invention relates to a method for producing a pump body comprising an inlet having an inlet valve (106) and an outlet having an outlet valve (108). According to said method, the first step is for a first main surface each of a first ...  
WO/1998/050694A1
A fluidic ball diverter valve for use in aerospace applications for diverting the output of a fluidic amplifier (100) comprises a valve chamber having an inlet (98) and two outlets (82, 82). The orientation of the outlet valve seats (106...  
WO/1998/036847A1
A fluidic oscillator and method in which a first molded portion (30) comprises a first part having an oscillator circuit silhouette formed in one surface. The oscillator circuit silhouette has a power nozzle (15'), an oscillation chamber...  
WO/1998/037397A1
A device (10) for mixing an aspirated fluid slug (40) includes a mounting frame (20) having a first and a second mounting plate (16, 18). A piezo-ceramic disk (12) is sandwiched between the two O-rings seals (14), which, in turn, are san...  
WO/1998/033001A1
A method for producing a microfluidic coupler includes the step of producing a first mask on a top surface of a wafer (10). The first mask defines an insertion channel pattern selected to correspond to the cross-sectional shape of a capi...  
WO/1998/032616A1
A valve (100) where the valve membrane is made from silicone rubber (118). Preferably the valve is a microelectromechanical systems (MEMS) thermopneumatic valve. Because of the advantageous physical properties of silicone rubber, the val...  
WO1998013605A3  
WO/1998/025065A1
Apparatus comprising a micro engineered structure and a capillary or other small bore tube and a method for connecting the tube to the structure. The micro engineered structure is composed of at least one substrate (2) in which fluid flo...  
WO1997049926A3  
WO/1998/023869A1
A microvalve comprising a micromechanically structured chip defining a valve seat (87) with a through-flow opening (88), an elastic suspension device (86) and a border area (89). Also included is valve plate (92) which is connected to th...  
WO/1998/023868A1
The invention relates to a microvalve which has a base body (34) with a passage opening (30), a tappet (14), a suspension device (12), through which the tappet (14) can be guided with relation to the base body (34) in such a way that the...  
WO/1998/022719A1
The invention concerns a miniature valve for filling the reservoir of an apparatus for the transdermal administration of a medicine comprising a) a substrate (1), b) a fuel charge (5) arranged on the substrate (1) opposite the passage to...  
WO/1998/020288A1
Fluidic devices, including constant-rotation double diodes (168) and constant-rotation double vortex tubes (168), are disclosed with which to construct pulse tube refrigerators (701) having diode loops (788), constant-rotation double dio...  
WO/1998/014707A1
The invention concerns a micro-machined device (10) for fluids comprising a substrate (12) with a flow conduit (14), a thin ductile layer (18) such as a pumping diaphragm or a diaphragm forming a check-valve. The thin layer (18) is a lam...  
WO/1998/013605A2
Integrated, electrically operable micro-valves are formed to control fluid flow and pressure. These valves convert electrical energy to mechanical energy through an energy conversion device (120) having a sealed cavity (100) with a flexi...  
WO/1998/010870A1
A two-stage liquid spray device having an outlet region with an island (41) and an exit aperture (47) and a fluidic oscillator (33) driving said outlet region. The improvement for the spray device is operable at a low pressure to achieve...  
WO/1998/007019A1
The invention provides microvalves for controlling fluid flow from microreservoirs into transfer channels using capillary valving mechanisms. This invention provides microvalving means for use in apparatus useful for performing microanal...  

Matches 501 - 550 out of 2,914