Class / Patent application number | Description | Number of patent applications / Date published |
137833000 | Structure of body of device | 31 |
20080210319 | MICROFABRICATED ELASTOMERIC VALVE AND PUMP SYSTEMS - 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 along a bottom surface of the first elastomeric layer; forming a second elastomeric layer on top of a second micromachined mold, the second micromachined mold having a second raised protrusion which forms a second recess extending along a bottom surface of the second elastomeric layer; bonding the bottom surface of the second elastomeric layer onto a top surface of the first elastomeric layer such that a control channel forms in the second recess between the first and second elastomeric layers; and positioning the first elastomeric layer on top of a planar substrate such that a flow channel forms in the first recess between the first elastomeric layer and the planar substrate. | 09-04-2008 |
20080210320 | MICROFABRICATED ELASTOMERIC VALVE AND PUMP SYSTEMS - 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 along a bottom surface of the first elastomeric layer; forming a second elastomeric layer on top of a second micromachined mold, the second micromachined mold having a second raised protrusion which forms a second recess extending along a bottom surface of the second elastomeric layer; bonding the bottom surface of the second elastomeric layer onto a top surface of the first elastomeric layer such that a control channel forms in the second recess between the first and second elastomeric layers; and positioning the first elastomeric layer on top of a planar substrate such that a flow channel forms in the first recess between the first elastomeric layer and the planar substrate. | 09-04-2008 |
20080210321 | MICROFABRICATED ELASTOMERIC VALVE AND PUMP SYSTEMS - 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 along a bottom surface of the first elastomeric layer; forming a second elastomeric layer on top of a second micromachined mold, the second micromachined mold having a second raised protrusion which forms a second recess extending along a bottom surface of the second elastomeric layer; bonding the bottom surface of the second elastomeric layer onto a top surface of the first elastomeric layer such that a control channel forms in the second recess between the first and second elastomeric layers; and positioning the first elastomeric layer on top of a planar substrate such that a flow channel forms in the first recess between the first elastomeric layer and the planar substrate. | 09-04-2008 |
20080210322 | MICROFABRICATED ELASTOMERIC VALVE AND PUMP SYSTEMS - 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 along a bottom surface of the first elastomeric layer; forming a second elastomeric layer on top of a second micromachined mold, the second micromachined mold having a second raised protrusion which forms a second recess extending along a bottom surface of the second elastomeric layer; bonding the bottom surface of the second elastomeric layer onto a top surface of the first elastomeric layer such that a control channel forms in the second recess between the first and second elastomeric layers; and positioning the first elastomeric layer on top of a planar substrate such that a flow channel forms in the first recess between the first elastomeric layer and the planar substrate. | 09-04-2008 |
20080257438 | Micromachined electrowetting microfluidic valve - This invention relates to a systems and methods of controlling the flow of a fluid in a capillary or microfluidic channel. A first pair of electrodes can influence the wetting of a fluid front at a relatively hydrophobic surface in the channel. A second pair of electrodes can electrolytically generate a bubble that can stop fluid flow when it contacts the hydrophobic surface. Flow of a fluid in a channel can be stopped on contact with the hydrophobic surface and restarted when an electrostatic field reduces the contact angle of the fluid at the hydrophobic surface. The electrostatic field can be removed and the fluid stopped again when an electrolytically generated bubble contacts the hydrophobic surface to reestablish the blocking contact angle of the fluid, gas and surface. | 10-23-2008 |
20080277005 | MICROFABRICATED ELASTOMERIC VALVE AND PUMP SYSTEMS - 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 along a bottom surface of the first elastomeric layer; forming a second elastomeric layer on top of a second micromachined mold, the second micromachined mold having a second raised protrusion which forms a second recess extending along a bottom surface of the second elastomeric layer; bonding the bottom surface of the second elastomeric layer onto a top surface of the first elastomeric layer such that a control channel forms in the second recess between the first and second elastomeric layers; and positioning the first elastomeric layer on top of a planar substrate such that a flow channel forms in the first recess between the first elastomeric layer and the planar substrate. | 11-13-2008 |
20080277006 | Fabrication of ultra-shallow channels for microfluidic devices and systems - A method for etching an ultra-shallow channel includes using an etch process that is selective for one material to etch a different material in order to achieve a very precise channel depth in the different material. Channels as shallow as 10 nm can be fabricated in silicon with precision of 5 nm or better using the method. Stepped channels can be fabricated where each segment is a different depth, with the segments being between 10 nm and 1000 nm in depth. The method is applied to create a fluidic channel which includes a channel substrate to which is bonded a lid substrate to confine fluids to the fluidic channels so fabricated. | 11-13-2008 |
20080277007 | MICROFABRICATED ELASTOMERIC VALVE AND PUMP SYSTEMS - 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 along a bottom surface of the first elastomeric layer; forming a second elastomeric layer on top of a second micromachined mold, the second micromachined mold having a second raised protrusion which forms a second recess extending along a bottom surface of the second elastomeric layer; bonding the bottom surface of the second elastomeric layer onto a top surface of the first elastomeric layer such that a control channel forms in the second recess between the first and second elastomeric layers; and positioning the first elastomeric layer on top of a planar substrate such that a flow channel forms in the first recess between the first elastomeric layer and the planar substrate. | 11-13-2008 |
20080289710 | MICROFABRICATED ELASTOMERIC VALVE AND PUMP SYSTEMS - 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 along a bottom surface of the first elastomeric layer; forming a second elastomeric layer on top of a second micromachined mold, the second micromachined mold having a second raised protrusion which forms a second recess extending along a bottom surface of the second elastomeric layer; bonding the bottom surface of the second elastomeric layer onto a top surface of the first elastomeric layer such that a control channel forms in the second recess between the first and second elastomeric layers; and positioning the first elastomeric layer on top of a planar substrate such that a flow channel forms in the first recess between the first elastomeric layer and the planar substrate. | 11-27-2008 |
20080295909 | Microfluidic Device for Passive Sorting and Storage of Liquid Plugs Using Capillary Force - A three dimensional microfluidic device for passive sorting and storing of liquid plugs is provided with homogeneous surfaces from the exposure of a photopolymer through binary masking motifs, i.e., arrays of opaque pixels on a transparency mask. The device includes sub-millimeter three-dimensional relief microstructures to aid in the channeling of fluids. The microstructures have topographically modulated features smaller than 100 micrometers. | 12-04-2008 |
20090000678 | MICROCAPILLARY NETWORKS - Devices that include hosts having internal microcapillary networks are disclosed. The microcapillary networks are formed from interconnected passageways. The interconnected passageways may be formed by removing a fugitive material from a cured host material that forms the host. The resultant host material has many applications, including use as a microfluidic device in applications ranging from fluid mixing to structural repair. | 01-01-2009 |
20090139590 | Durable Frit Composition and Composites and Devices Comprised Thereof - A zirconium- and alumina-containing silicate glass suitable for use as a frit with refractory materials such as alumina is disclosed, the silicate glass comprising a glass composition in mole percent (mol %) of: | 06-04-2009 |
20090217997 | Thin welded sheets fluid pathway - A plurality of thin welded sheets ( | 09-03-2009 |
20090250130 | PRODUCTION OF MICROFLUIDIC POLYMERIC DEVICES BY PHOTO-ASSISTED AND/OR THERMALLY ASSISTED PRINTING - Method for producing a microfluidic device comprising a step in which a stamp made of elastomeric material is used for printing a photo-curable and/or heat-curable liquid disposed on a support. | 10-08-2009 |
20090250131 | DEVICE FOR REDUCING BITTERNESS AND ASTRINGENCY IN BEVERAGES CONTAINING POLYPHENOLS AND TANNINS - A method of treating an orally ingestible item having an original taste to be enhanced or reduced without imparting bitterness to the item, includes exposing the item to a magnetic field and oxygen. | 10-08-2009 |
20100024908 | Microvolume liquid dispensing device - A microvolume liquid dispensing device capable of automatically dispensing a predetermined volume of a microvolume liquid has been provided. Because one surface of a main channel ( | 02-04-2010 |
20100101670 | ELECTRICAL MICROVALVE AND METHOD OF MANUFACTURING THEREOF - The present invention relates to a microvalve for controlling a fluid flow in a microchannel, to a microfluidic circuit using the microvalve, and to a manufacturing method thereof. The microvalve has a first electrode located on a portion of the microchannel, a second electrode over the microchannel and substantially aligned with the first electrode forming a membrane with substantially no resilience. In function, upon application of an electric force on the first and second electrodes, the second electrode draws nearer the first electrode, thus obstructing the microchannel. The microfluidic circuit comprises multiple microchannels and at least one microvalve affixed to one of the multiple microchannels, wherein the at least one microvalve is adapted to indirectly actuate a flexible valve adapted to regulate a flow of fluid in another one of a multiplicity of microchannels. | 04-29-2010 |
20100175767 | Microfabricated Elastomeric Valve and Pump Systems - 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 along a bottom surface of the first elastomeric layer; forming a second elastomeric layer on top of a second micromachined mold, the second micromachined mold having a second raised protrusion which forms a second recess extending along a bottom surface of the second elastomeric layer; bonding the bottom surface of the second elastomeric layer onto a top surface of the first elastomeric layer such that a control channel forms in the second recess between the first and second elastomeric layers; and positioning the first elastomeric layer on top of a planar substrate such that a flow channel forms in the first recess between the first elastomeric layer and the planar substrate. | 07-15-2010 |
20100200094 | SURFACE TENSION CONTROLLED VALVES - The present teachings relate to surface tension controlled valves used for handling biological fluids. The valves controlled by optically actuating an electro-wetting circuit. | 08-12-2010 |
20100258211 | MODULAR MICROFLUIDIC ASSEMBLY BLOCK AND SYSTEM INCLUDING THE SAME - A modular microfluidic system comprising a base substrate, a plurality of microfluidic assembly blocks, and an adhesive component is provided. Each individual microfluidic assembly block defines a channel and has a sidewall defining an aperture into the channel. When the plurality of microfluidic assembly blocks are arranged on the base substrate, the aperture into the channel of one microfluidic assembly block aligns with the aperture of another microfluidic assembly block with the channels thereof connected along a plane parallel to the base substrate thereby forming a channel network defined by the plurality of microfluidic assembly blocks. The subject invention also provides a method of assembling a microfluidic device. The method comprising the steps of providing the base substrate, providing the plurality of microfluidic assembly blocks, and arranging the plurality of microfluidic assembly blocks on the base substrate. | 10-14-2010 |
20110162744 | Device for piloting by means of a substantially incompressible fluid - A device for piloting by means of a substantially incompressible fluid, comprising a two-way flow control valve which operates along a piloting line and has at least one first port and one second port, which are adapted to be connected, respectively, to elements for supplying a substantially incompressible fluid under pressure and to a fluid-operated element to be piloted by the piloting line and choke elements arranged in parallel to the flow control valve along a bypass duct which is closed in a loop on the piloting line, the flow control valve being actuated for closing by the pressure at the second port, the calibration pressure value at which the flow control valve closes being at most equal to the actuation pressure value of the element to be piloted. | 07-07-2011 |
20110186165 | THREE-DIMENSIONAL MICROFLUIDIC PLATFORMS AND METHODS OF USE AND MANUFACTURE THEREOF - Microfluidic devices may be fabricated from thermoplastics using, for example, hot embossing techniques. In some embodiments, the devices feature non-uniform surface modifications. | 08-04-2011 |
20110259458 | MICRO-MACHINED TEMPERATURE DEPENDENT ONE-SHOT VALVE AND PROCESS FOR PRODUCTION THEREOF - A micro-machined temperature dependent one-shot valve is provided which has an operation temperature adjustable readily, causing no leakage below the operation temperature even at a high pressure difference, being useful both in a liquid environment and in a gas environment, and being miniaturizable. The micro-machined temperature dependent one-shot valve comprises a silicon substrate | 10-27-2011 |
20120024408 | APPARATUS FOR JETTING COMPRESSED AIR, AND METHOD FOR MANUFACTURING SAME - Provided is an apparatus for jetting compressed air and a method of manufacturing the apparatus. The apparatus includes: an air intake pipe having a discharge hole, through which compressed air received from outside the apparatus is discharged, formed on an outer surface having a curved or multilateral shape; and an amplifying unit having a contact surface combining to the outer surface by having a curved or multilateral shape corresponding to the outer surface, and including an inlet portion wherein an inlet hole corresponding to the discharge hole is formed on the contact surface, and an outlet portion for amplifying and discharging the compressed air received through the inlet hole on the contact surface. As such, by forming the contact surface of the amplifying unit to have a curved or multilateral shape corresponding to the outer surface of the air intake pipe, the contact surface of the amplifying unit and the outer surface of the air intake pipe may be closely and uniformly bound together. Accordingly, the flow of the compressed air flowing into the amplifying unit through the air intake pipe may be constant and the compressed air may be prevented from being lost to outside the apparatus, and thus jetting efficiency of the compressed air discharged through the amplifying unit may be increased while instantly jetting a large amount of air by discharging surrounding air with the compressed air. | 02-02-2012 |
20120042974 | BRUSHLESS MOTOR - A brushless motor has a stator and a rotor rotatably installed inside of the stator. The stator includes a stator core with teeth protruding inwardly and windings wound on the teeth. The rotor includes a shaft, a rotor core fixed on the shaft, and a ring magnet fixed to the circumferential outer surface of the rotor core. The magnet includes a plurality of magnetic poles radially magnetized so that north poles and south poles are arranged alternately in the circumferential direction. Boundary lines between magnetic poles are skewed by an angle relative to an axis of the shaft. | 02-23-2012 |
20120103451 | PRESSURE COMPENSATION DEVICE - Pressure compensators ( | 05-03-2012 |
20120186683 | ADJUSTABLE FLUID PRESSURE AMPLIFIER - The amplifier includes a housing | 07-26-2012 |
20130019978 | GAS INJECTION DEVICE WITH UNIFORM GAS VELOCITY - Embodiments of the device relate to an injector ( | 01-24-2013 |
20130032235 | INTEGRATED MICROFLUIDIC CHECK VALVE AND DEVICE INCLUDING SUCH A CHECK VALVE - An integrated microfluidic check valve has a first chamber having inlet and outlet ports and divided by a barrier the said inlet and outlet ports into first and second subchambers. A membrane forms a wall of the first chamber and co-operates with the barrier to selectively permit and prevent fluid flow between the inlet and outlet ports. A second chamber adjoining the first chamber and has a wall formed by the membrane. A microfluidic channel establishes fluid communication between the second chamber and the first subchamber. The membrane deflects to permit fluid flow around the barrier when the pressure in the first subchamber is lower than the pressure in the second subchamber. Two such valves can be combined into a peristaltic pump. | 02-07-2013 |
20130284294 | FLUID ACTUATOR FOR INFLUENCING THE FLOW ALONG A FLOW SURFACE, AS WELL AS BLOW-OUT DEVICE AND FLOW BODY COMPRISING A LIKE FLUID ACTUATOR - The invention relates to fluid actuator for influencing the flow along a flow surface through ejection of a fluid. By means of a like fluid actuator, a continuous flow is distributed to at least two outlet openings in order to generate fluid pulses out of these outlet openings. Control of this distribution takes place inside an interaction chamber which is supplied with fluid flow via a feed line. Into this interaction chamber there merge at least two control lines via control openings to which a respective different pressure may be applied. Depending on the pressure difference at the control openings, the flow in the interaction chamber is distributed to the individual outlet openings. | 10-31-2013 |
20140182726 | FLUID MIXING ELEMENT - The fluid mixing element in accordance with this invention forms a first internal flow channel whose starting end opens on an end surface of one end part and whose terminal end opens on an end surface of the other end part and a second internal flow channel whose starting end opens on a side peripheral surface of a middle part and whose terminal end opens on an end surface of the other end part. It is possible for the fluid mixing element to securely mix a first fluid flowing in a main flow channel with a second fluid flowing in a sub-flow channel by the use of a pipe with a short length with a simple arrangement. | 07-03-2014 |