Class / Patent application number | Description | Number of patent applications / Date published |
137825000 | Means to regulate or vary operation of device | 60 |
20090165876 | Microfluidic Structures - A fluid handling structure includes: an actuation area ( | 07-02-2009 |
20090277521 | OUTLET NOZZLE - An outlet nozzle ( | 11-12-2009 |
20100084032 | DISPENSER ARRANGEMENT FOR FLUIDIC DISPENSING CONTROL IN MICROFLUIDIC SYSTEM - A dispenser arrangement for fluidic dispensing control into a microfluidic component comprising an enclosed fluid holding area having a base portion and a top portion and a valve adapted to be movable between an open position and a closed position and positioned at least partially in the fluid holding area. The valve comprises an elongated hollow portion having a body and two ends adapted for fluid flow from the fluid holding area to the microfluidic component in the open position, a first opening on the body of the hollow portion positioned within the fluid holding area allowing fluid communication from the fluid holding area to the microfluidic component in the open position, a sealing portion connected to a first end of the hollow portion positioned within the fluid holding area adapted for sealing connection with the top portion of the fluid holding area in the closed position and a slant second opening at a second end of the hollow portion positioned outside of the fluid holding area. The slant second opening is adapted to pierce through a sealing layer covering the microfluidic component in the open position and to insert into a first substrate housing the microfluidic component in the closed position. A dispenser unit comprising a dispenser arrangement and an actuator, wherein the actuator is a piston is also disclosed. | 04-08-2010 |
20100186839 | MICROFLUIDIC VALVE UNIT FOR CONTROLLING FLOW OF FLUID AND METHOD OF FABRICATING THE SAME - A microfluidic valve unit for controlling the flow of fluid flowing along a channel, and a method of fabricating the same are provided. The valve unit includes a channel formed in a platform; a valve filler which includes a phase transition material that is disposed in the channel in a solid state at room temperature to close the channel and is melted when energy is applied thereto; and at least one capillary channel which extends from a sidewall of the channel and into which the valve filler flows when the valve filler is melted, wherein the at least one capillary channel has a cross-sectional area which is less than a cross-sectional area of the channel. | 07-29-2010 |
20100186840 | MULTI-VALVE MICROFLUIDIC DEVICES AND METHODS - Multi-valve autoregulatory microfluidic devices and methods are described. The described devices and methods offer improved performance and new means of tuning autoregulatory effects in microfluidic devices. | 07-29-2010 |
20130291981 | 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 a fluid actuator for influencing the flow along a flow surface by 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 supplied with fluid flow via a feed line. Into this interaction chamber there merge at least two control lines via control openings to which respective different pressures may be applied. The flow in the interaction chamber is distributed to the individual outlet openings as a function of the pressure difference at the control openings. | 11-07-2013 |
20140238521 | IONIC FIELD EFFECT TRANSISTOR HAVING HETEROGENEOUS TRIANGULAR NANOCHANNEL AND METHOD OF MANUFACTURING THE SAME - An ionic field effect transistor includes: a substrate; a polymer layer that is formed on the substrate and in which a first flow path and a second flow path that is separately disposed from the first flow path are formed; and a gate electrode that is formed between the substrate and the polymer layer and that contacts the first flow path and the second flow path, wherein a heterogeneous triangular nanochannel that connects the first flow path and the second flow path is formed between the gate electrode and the polymer layer. | 08-28-2014 |
137826000 | To vary frequency of pulses or oscillations | 6 |
20100224274 | LIQUID CONTROL APPARATUS - A liquid control apparatus is used for controlling the movement of liquid in a microfluidic device having a flow channel for holding liquid. The apparatus comprises a vibration wave generating section for generating a vibration wave to be applied to the microfluidic device and a signal supplying section for supplying drive signals to the vibration wave generating section so as to oscillate in an oscillation mode selected from a transfer mode for moving liquid in a predetermined direction, a stop mode for stopping the movement of liquid, a mixing and/or agitation mode for mixing and/or agitating liquid and a localization mode for localizing a predetermined substance in liquid. | 09-09-2010 |
20120125463 | AERODYNAMIC CHOPPER FOR GAS FLOW PULSING - This supersonic pulse flow device is intended to provide a technical solution in a number of fields where the injection of a flow must be pulsed as required by the process or in order to limit the power consumption and size of the pumping means. In the case of flows achieved by means of a Laval nozzle, it is possible to generate a uniform supersonic jet at very low temperature (currently up to 20 K), which is stable over hydrodynamic periods of time between 150 and 1000 microseconds. This device is aimed as solving problems relating to the use of aerodynamic tools in research and development and in industrial processes. | 05-24-2012 |
20120168014 | CROSS-FLOW FLUIDIC OSCILLATORS FOR USE WITH A SUBTERRANEAN WELL - A fluidic oscillator can include an input, first and second outputs on opposite sides of a longitudinal axis of the oscillator, whereby a majority of fluid which flows through the oscillator exits the oscillator alternately via the first and second outputs, first and second paths from the input to the respective first and second outputs, and wherein the first and second paths cross each other between the input and the respective first and second outputs. Another oscillator can include an input, first and second outputs, whereby a majority of fluid flowing through the fluidic oscillator exits the oscillator alternately via the first and second outputs, first and second paths from the input to the respective first and second outputs, and a feedback path which intersects the first path, whereby reduced pressure in the feedback path influences the majority of fluid to flow via the second path. | 07-05-2012 |
20120168015 | CONE AND PLATE FLUIDIC OSCILLATOR INSERTS FOR USE WITH A SUBTERRANEAN WELL - A method of manufacturing a fluidic oscillator insert for use in a subterranean well can include forming the insert with a conical housing engagement surface thereon, and forming at least one fluidic oscillator on a substantially planar surface of the insert. A well tool can include a housing assembly, at least one insert received in the housing assembly, the insert having a fluidic oscillator formed on a first surface thereof, the insert being at least partially secured in the housing assembly by engagement of conical second and third surfaces formed on the insert and housing assembly, and a cover which closes off the first surface on the insert. An insert for use in a well tool can include a conical housing engagement surface, and at least one fluidic oscillator formed on a substantially planar surface. The fluidic oscillator produces oscillations in response to fluid flow through the fluidic oscillator. | 07-05-2012 |
20150096637 | NOISE ATTENUATION IN A CHECK VALVE UNIT OR APPARATUS FOR PRODUCING VACUUM - Check valve units having one or more sound attenuating members are disclosed. A check valve unit includes a housing defining an inlet port, an outlet port, and a chamber in fluid communication therewith thereby defining a flow path from the inlet port through the chamber to the outlet port. The chamber includes first and second valve seats and has a sealing member disposed therein that is moveable from a position seated on the first valve seat to a position seated on the second valve seat. A sound attenuating member is disposed in the flow path downstream of the chamber, within the chamber, or both. In another embodiment, the check valve unit includes a Venturi portion in fluid communication with the chamber. The Venturi portion has a fluid junction with the flow path downstream of the chamber or forms the discharge section of the Venturi portion thereby defining the outlet port. | 04-09-2015 |
20190145441 | FREQUENCY-SYNCHRONIZED FLUIDIC OSCILLATOR ARRAY | 05-16-2019 |
137827000 | By non-fluid energy field affecting input (e.g., transducer) | 25 |
20080196778 | Microfluidic Circuit Having an Active Component - A microfluidic circuit comprising microchannels ( | 08-21-2008 |
20080245430 | PLASMON ASSISTED CONTROL OF OPTOFLUIDICS - A method of microfluidic control via localized heating includes providing a microchannel structure with a base region that is partially filled with a volume of liquid being separated from a gas by a liquid-gas interface region. The base region includes one or more physical structures. The method further includes supplying energy input to a portion of the one or more physical structures within the volume of liquid in a vicinity of the liquid-gas interface region to cause localized heating of the portion of the one or more physical structures. The method also includes transferring heat from the portion of the one or more physical structures to surrounding liquid in the vicinity of the liquid-gas interface region and generating an interphase mass transport at the liquid-gas interface region or across a gas bubble while the volume of liquid and the gas remain to be substantially at ambient temperature. | 10-09-2008 |
20080314465 | MICROFLUIDIC VALVE, METHOD OF MANUFACTURING THE SAME, AND MICROFLUIDIC DEVICE COMPRISING THE MICROFLUIDIC VALVE - Provided is a microfluidic valve, a method of manufacturing the microfluidic valve, and a microfluidic device that employs the microfluidic valve. The microfluidic valve includes a platform that includes two substrates combined facing each other; a channel having a first depth allowing a fluid to flow between the two substrates; a valve gap that is disposed on at least a region of the channel and has a second depth which is smaller than the first depth; and a valve plug that is disposed to fill the valve gap and is formed of a valve material made by mixing a phase change material, which is solid at room temperature, with a plurality of exothermic particles that emit an amount of heat sufficient to melt the phase change material by absorbing electromagnetic waves. | 12-25-2008 |
20090078326 | LIGHT-DRIVEN MICROFLUIDIC DEVICES AND AMPLIFICATION OF STIMULUS-INDUCED WETTING - Disclosed are compositions and methods for producing movement of liquid across surfaces. | 03-26-2009 |
20090090422 | Method for Treating Drops in a Microfluid Circuit - The invention relates to a method for treating drops in a microfluid circuit, comprising at least one microchannel ( | 04-09-2009 |
20090199917 | Microfluidic Device with Variable Volume Material - The invention relates to a microfluidic device comprising a first plate forming the substrate and including at least one perforation and, on either side of said first plate, at several locations, a material for defining passage portions consisting, in at least one of said locations, of an activatable material varying in volume on activation, said material being disposed at said locations in an arrangement that, during a first phase and upon activation of at least one location consisting of said activatable material, transforms it from a first configuration to a second configuration, modifying a three-dimensional network corresponding, in the second configuration and depending on the selected location(s) that are activated in said first phase, to different liquid paths including passage portions in offset planes parallel to the plane of the first plate, at least on either side of said first plate, and between which at least one of said perforations is located. | 08-13-2009 |
20090308473 | MICRO-FLUIDIC CHIP AND FLOW SENDING METHOD IN MICRO-FLUIDIC CHIP - Disclosed herein is a micro-fluidic chip including a hollow area into which a charged droplet is introduced, and an electrode configured to be provided toward the hollow area. Movement direction of a droplet in the hollow area is controlled based on electric force acting between a charge given to the droplet and the electrode. | 12-17-2009 |
20100000620 | MICROFLUIDIC LIQUID-MOVEMENT DEVICE - The invention concerns a microfluidic liquid-movement device. | 01-07-2010 |
20100163130 | PRESSURE WAVE GENERATOR AND CONTROLLER FOR GENERATING A PRESSURE WAVE IN A MEDIUM - An apparatus for generating a pressure wave in a medium is disclosed. The apparatus includes a plurality of pressure wave generators having respective moveable pistons, the pistons having respective control rods connected thereto. The apparatus also includes a plurality of transducers coupled to the medium and means for causing the pistons of respective ones of the plurality of the pressure wave generators to be accelerated toward respective ones of the plurality of transducers. The apparatus further includes means for causing restraining forces to be applied to respective control rods to cause respective pistons to impact respective transducers at respective desired times and with respective desired amounts of kinetic energy such that the respective desired amounts of kinetic energy are converted into a pressure wave in the medium. | 07-01-2010 |
20110100495 | MICROFLUIDIC DEVICES WITH SEPARABLE ACTUATION AND FLUID-BEARING MODULES - A fluid transport/containment apparatus includes a fluid-bearing module and an actuation module. The fluid-bearing module includes a substrate and fluid transport/containment elements distributed therein, with one or more of the fluid transport/containment elements having microfluidic dimensions. The actuation module is detachably secured to the fluid-bearing module such that the actuation elements are operatively interfaced with the fluid transport/containment elements. | 05-05-2011 |
20120180894 | VALVE AND ACTUATOR EMPLOYING CAPILLARY ELECTROWETTING PHENOMENON | 07-19-2012 |
20130255812 | FLUIDIC ACTOR COMPRISING DEFORMABLE SEAL ARRANGEMENT AND LONG STORABILITY - A fluidic actuator includes a basic arrangement having at least one cavity formed therein, an activatable substance within the cavity, and a deformable seal arrangement. The activatable substance, exemplarily an electrolyte, may be converted, at least partly, by suitable activation and thus cause a change in pressure in the cavity. The deformable seal arrangement serves for sealing the cavity. The seal arrangement includes an element containing paraffin and may be deformed when activating the activatable substance due to the change in pressure of the activatable substance. A corresponding method of manufacturing includes the following steps: providing the basic arrangement; forming a cavity, which is open on at least one side, in the basic arrangement; introducing the activatable substance into the cavity; and sealing the cavity using the deformable seal arrangement which includes an element containing paraffin. | 10-03-2013 |
20130312857 | SYSTEMS FOR MODIFYING A FLUID FLOW OF A VEHICLE - Drag experienced by a vehicle traveling through an environmental media, such as air or water, may be modified by one or more energy beams which may increase or decrease drag. A control system smay be used to actively modulate the drag of the vehicle by selectively transmitting energy beams. Energy beams may include electric pulse signals, pulsed air, piezoelectric, infrared, ultraviolet, laser, optical band, microwave, thermal other known acoustic, electric, optical, or other electromagnetic energy and any combination thereof. This could be a constant or pulsed energy beam and adjusted for the speed and/or vertical lift, frequency, density, angle, pulse and wavelengths experienced by the vehicle. Charged particles may be emitted from the vehicle itself and then utilized in front or behind the vehicle via electric current to improve the boundary layer, boundary flow. | 11-28-2013 |
20140251477 | METHOD AND SYSTEM FOR COORDINATION ON OPTICALLY CONTROLLED MICROFLUIDIC SYSTEMS - In accordance with one embodiment, a method for automatically coordinating droplets for optically controlled microfluidic systems, comprising using light to move one or a plurality of droplets simultaneously, applying an algorithm to coordinate droplet motions and avoid droplet collisions, and moving droplets to a layout of droplets. In another embodiment, a system for automatically coordinating droplets for optically controlled microfluidic systems, comprising using a light source to move one or a plurality of droplets simultaneously, using an algorithm to coordinate droplet motions and avoid droplet collisions, and using a microfluidic device to move droplets to a layout of droplets. | 09-11-2014 |
20150047732 | FLUIDIC SYSTEM, USE, AND METHOD FOR OPERATING THE SAME - A fluidic system having a first volume, a second volume and a membrane geometrically separating the two volumes, which has an open-pore microstructure for the passage of a first medium and a second medium. There is a contact angle (θ) between the interface of the media and the pore surface. A first electrical field in the region of the membrane and a first electromagnetic radiation and a first heating of the membrane define a first state (Z | 02-19-2015 |
20160201699 | GENERATING WAVEFORMS, SUCH AS STANDING OR PROPAGATING WAVES, IN A MULTI-FLUID ELECTROWETTING SYSTEM | 07-14-2016 |
137828000 | Acoustical or thermal energy | 9 |
20090044875 | MICROFLUIDIC SYSTEM - Microfluidic system ( | 02-19-2009 |
20090314367 | Bonded Microfluidics System Comprising CMOS-Controllable Microfluidic Devices - A microfluidic system comprising an integrated circuit having a bonding surface bonded to a polymeric microfluidics platform. The microfluidic system comprises one or more microfluidics devices controlled by control circuitry in the integrated circuit. At least one of the microfluidic devices comprises a MEMS actuator positioned in a MEMS layer of the integrated circuit. The MEMS layer is covered with a polymeric layer which defines the bonding surface of the integrated circuit. | 12-24-2009 |
20090314368 | Microfluidic System Comprising Pinch Valve and On-Chip MEMS Pump - A microfluidic system comprising a pneumatic or an hydraulic pinch valve. The pinch valve comprises: a microfluidic channel defined in a compliant body; an inflatable control channel cooperating with a valve section of the microfluidic channel such that pneumatic or hydraulic pressurization of the control channel causes inflation of the control channel and pinching closure of the valve section. The microfluidic system comprises an on-chip MEMS pump in fluidic communication with the control channel for pressurizing said control channel. | 12-24-2009 |
20100180970 | Electro-Hydraulic Devices - A microfluidic device includes a substrate including multiple electro-hydraulic valves and/or electro-hydraulic pumps that each include a flow channel and one or more hydraulic control channels, actuators for controlling the electro-hydraulic valves and/or electro-hydraulic pumps, and a hydraulic pressure source operatively connected to the hydraulic control channels. | 07-22-2010 |
20100200092 | DEVICE FOR CONTROLLING FLUID MOTION INTO MICRO/NANOCHANNELS BY MEANS OF SURFACE ACOUSTIC WAVES - Herein described is a device for controlling fluid motion in a micro/nanofluidic structure of channels, comprising:
| 08-12-2010 |
20100200093 | Phase-Change Valve Apparatuses - A valve apparatus includes a substrate, a main flow channel formed in the substrate, a control channel formed in the substrate such that the main flow channel and the control channel meet at a junction, a bi-phase material within the control channel, a heating element adjacent the control channel and the junction, the heating element being controllable to generate sufficient energy to cause the bi-phase material to transition from a solid phase to a liquid phase, and a pumping mechanism for forcing the bi-phase material either into or out of the junction when the bi-phase material is in the liquid phase. | 08-12-2010 |
20100229986 | Fast Acting Valve Apparatuses - Embodiments of valve apparatuses are described. | 09-16-2010 |
20120168016 | MICROVALVE HAVING MAGNETIC WAX PLUG AND FLUX CONTROL METHOD USING MAGNETIC WAX - Provided is a microvalve having a magnetic wax plug which includes a micro fluidic structure having an inlet portion and an outlet portion, a magnetic wax plug provided at a predetermined | 07-05-2012 |
20140373952 | MICROCHANNEL WITH AN OPENING AND/OR CLOSING AND/OR PUMPING DEVICE - A microchannel formed at the interface of two layers of material, at least one of the two materials being a substrate. A volume of the microchannel contains a film of polymer fixed by covalent bonding to the substrate layer. The film of polymer being formed from a hydrogel material susceptible to undergoing changes in volume under the action of an external stimulus. The hydrogel polymer is chosen from those which are sensitive to changes in temperature, light, electrical field or pH. A method for producing the microchannel. | 12-25-2014 |
137829000 | By movable element | 22 |
20090032130 | Fluid flow amplifier - A by-pass fluid flow amplifier which contains a primary nozzle and a primary profile for discharging compressed air into a conduit of the air amplifier and entraining ambient air in the process. A secondary nozzle and a secondary profile for discharging compressed air into the conduit of the air amplifier towards the rear that assists the primary nozzle such as to allow consistent fluid wall attachment of the compressed air and the entrained air caused by the primary nozzle and the primary profile. The secondary nozzle increases the total flow of the amplifier and prohibits the total flow from traveling towards the center of the conduit where flow reversal and turbulence are likely to occur. | 02-05-2009 |
20120261013 | MICROFLUIDIC SYSTEM INCLUDING A BUBBLE VALVE FOR REGULATING FLUID FLOW THROUGH A MICROCHANNEL - A microfluidic system includes a bubble valve for regulating fluid flow through a microchannel. The bubble valve includes a fluid meniscus interfacing the microchannel interior and an actuator for deflecting the membrane into the microchannel interior to regulate fluid flow. The actuator generates a gas bubble in a liquid in the microchannel when a sufficient pressure is generated on the membrane. | 10-18-2012 |
20130105017 | MICROFLUIDIC PUMP AND VALVE STRUCTURES AND FABRICATION METHODS | 05-02-2013 |
20140090735 | Valved, Microwell Cell-Culture Device And Method - A valved microfluidics device, microfluidics cell-culture device and system incorporating the devices are disclosed. The valved microfluidics device includes a substrate, a microchannel through which liquid can be moved from one station to another within the device, and a pneumatic microvalve adapted to be switched between open and closed states to control the flow of fluid through a microchannel. The microvalve is formed of three flexible membranes, one of which is responsive to pneumatic pressure applied to the valve and the other two of which deform to produce a more sealable channel cross-section. The cell culture device provides valving to allow controlled loading of cells into the individual well of the device, and exchange of cell-culture components in the wells. | 04-03-2014 |
137831000 | Electrically-actuated element (e.g., electro-mechanical transducer) | 11 |
20080264506 | System and method for using electrowetting on dielectric (EWOD) for controlling fluid in a microfluidic circuit - A system for controlling fluid flow in a microfluidic circuit includes at least one microfluidic channel having a first fluid, a switch element coupled to the microfluidic channel, the switch element comprising at least one inlet, at least one outlet and a second fluid, the second fluid being immiscible with respect to the first fluid. The system also includes an actuator configured to alter the position of the second fluid, such that when in a first position, the second fluid allows the first fluid to flow from the at least one inlet to the at least one outlet, and such that when in a second position, the second fluid prevents the first fluid from flowing from the at least one inlet to the at least one outlet. | 10-30-2008 |
20080271799 | Microfluidic Regulating Device - The invention relates to a microfluidic regulating device, comprising a first layer having a first microfluidic channel defined therein, a second layer having a second microfluidic channel defined therein, a fluid flow regulating layer disposed between the first and the second microfluidic channel, which layer comprises a movable valve member which in open position allows fluid communication between the first and second channel and in closed position seals against a valve seat, whereby at least part of the valve member and of the valve seat is magnetic. The device is able to store small quantities of liquids at microfluidic cartridges and access these on demand in a well controlled and simple way. | 11-06-2008 |
20090126813 | Liquid-Transport Device and System - An electroosmotic flow pump is filled with a driving liquid exhibiting electroosmotic phenomenon, and a transport liquid capable of noncontact movement through a valve as the driving liquid moves. Since only the driving liquid can pass through an electroosmotic material, even a transport liquid not exhibiting electroosmotic phenomenon can be transported by utilizing the electroosmotic flow pump. Consequently, the electroosmotic flow pump can transport any transport liquid stably so long as the driving liquid exhibits electroosmotic phenomenon. | 05-21-2009 |
20090165877 | ACTUATOR ELEMENTS FOR MICROFLUIDICS, RESPONSIVE TO MULTIPLE STIMULI - A micro-fluidic system comprises at least one micro-channel having a wall ( | 07-02-2009 |
20090188576 | CHECK VALVE DIAPHRAGM MICROPUMP - A micropump device including a first wafer and a second wafer attached to the first wafer. The first and second wafers are configured to define a chamber therebetween having a predetermined volume. A third wafer is attached to the second wafer to define an inlet section and an outlet section in fluid communication with the chamber. At least one of the second and third wafers are formed to define a moveable diaphragm configured to change the predetermined volume of the chamber for pumping a fluid between the inlet section and the outlet section. | 07-30-2009 |
20090242061 | Dual-cavity fluid conveying apparatus - A dual-cavity fluid conveying apparatus includes a flow-converging device, a first cavity body, and a second cavity body. The flow-converging device includes two sides corresponding to each other; a first channel and a second channel both passing through the two sides; and an inlet passage and an outlet passage both arranged between the two sides and communicated with the first channel and the second channel, respectively. The first cavity body and the second cavity body are symmetrically disposed at the two sides of the flow-converging device, wherein the first cavity body and the second cavity body each includes a valve cover disposed on one side of the flow-converging device, a valve membrane interposed between the one side of the flow-converging device and the valve cover, and an actuating device disposed circumferentially on the valve cover so as to define, together with the valve cover, a pressure chamber. | 10-01-2009 |
20100186841 | MICROFLUIDIC DISPENSING ASSEMBLY - A microfluidic dispensing system may include multiple supply lines for simultaneous filling of diaphragm pumps associated with each supply line. Each supply line may fill corresponding groups of diaphragm pumps with a corresponding ingredient to a supply reservoir for the supply line. Accordingly, different groups of diaphragm pumps corresponding to different supply lines may be filled with corresponding ingredients simultaneously. Those ingredients corresponding to the different groups of diaphragm pumps may also be dispensed simultaneously, giving rise to a faster and more efficient fluidic dispensing system. | 07-29-2010 |
20100313983 | POLYMER ACTUATOR, AND VALVE AND SHAFT-SEALING STRUCTURE EACH USING THE SAME - The object is to provide a polymer actuator capable of being utilized for any of various drive sources, wherein the amount of deformation of the polymer actuator can particularly be used also for a valve or shaft-sealing device. The polymer actuator comprises a power driver deformed upon receiving electro stimuli and electrodes disposed on the upper and lower surface sides of the power driver in an opposite manner for applying positive and negative electro stimuli to the power driver in a planar fashion. The electrodes have different stimuli application regions to have different electrical field distributions for causing distribution of stress-generated in the power driver to be eccentrically located on one of positive and negative sides, thereby bending and deforming the power driver onto a side on which the opposite stimuli application regions do not exist. | 12-16-2010 |
20120227846 | STAMP WITH DRAINAGE CHANNELS FOR TRANSFERRING A PATTERN IN THE PRESENCE OF A THIRD MEDIUM - A micro-electro-mechanical device includes a substrate; a piezoelectric actuator disposed on the substrate; and an elastic member affixed to the substrate at a first end thereof, and mechanically coupled to the piezoelectric actuator; wherein the elastic member comprises at least one of: a notch, a groove, and a recess. | 09-13-2012 |
20130199646 | VALVE PLUG - An active fluid component ( | 08-08-2013 |
20140238522 | PIEZOELECTRIC DRIVEN OSCILLATING SURFACE - Disclosed herein is an active roughness actuator and a method of forming an active roughness actuator. The active roughness actuator includes a surface having at least one aperture; a compliant layer disposed on the surface such that the compliant layer covers the at least one aperture; a chamber having a fluid therein and a piezoelectric surface mechanically coupled to the chamber. The chamber is in fluid communication with the compliant layer via the at least one aperture. The piezoelectric surface is configured to displace the fluid in the chamber to control production of at least one dimple in the compliant layer proximate to the at least one aperture. | 08-28-2014 |
137832000 | Means (e.g., valve) in control input | 7 |
20080257437 | MICROFABRICATED FLUIDIC CIRCUIT ELEMENTS AND APPLICATIONS - Microfabricated fluidic devices of the present invention include switches that can be opened and closed to allow or block the flow of fluid through a channel in response to the pressure level in a gate of the switch. The microfabricated fluidic switches may be coupled together to perform logic functions and Boolean algebra, such as inverters, AND gates, NAND, gates, NOR gates, and OR gates. The logic gates may be coupled together to form flip-flops that latch signals. The present invention also includes microfabricated fluidic pressure multipliers that increase the pressure in a second chamber relative to a first chamber. Microfabricated fluidic devices of the present invention also include high or low pressure sources. A pressure source of the present includes a pump coupled to a reservoir through unidirectional valves. Microfabricated fluidic devices of the present invention may also include devices that perform analog functions such as switching regulator. | 10-23-2008 |
20090056822 | Microfluidic Pump and Valve Structures and Fabrication Methods - Plastic microfluidic structures having a substantially rigid diaphragm that actuates between a relaxed state wherein the diaphragm sits against the surface of a substrate and an actuated state wherein the diaphragm is moved away from the substrate. As will be seen from the following description, the microfluidic structures formed with this diaphragm provide easy to manufacture and robust systems, as well readily made components such as valves and pumps. | 03-05-2009 |
20100263757 | Microfabricated Fluidic Circuit Elements and Applications - A microfabricated fluidic unidirectional valve includes a microfabricated elastomer material having a flow through channel. The microfabricated fluidic unidirectional valve also includes an elastomer flap attached to the elastomer material in the flow through channel. The elastomer flap forms a seal in the flow through channel to prevent fluid from flowing in a first direction through the flow through channel and to allow fluid flow in a second direction through the flow through channel. | 10-21-2010 |
20130000765 | MICROFABRICATED FLUIDIC CIRCUIT ELEMENTS AND APPLICATIONS - A microfabricated fluidic unidirectional valve includes a microfabricated elastomer material having a flow through channel. The microfabricated fluidic unidirectional valve also includes an elastomer flap attached to the elastomer material in the flow through channel. The elastomer flap forms a seal in the flow through channel to prevent fluid from flowing in a first direction through the flow through channel and to allow fluid flow in a second direction through the flow through channel. | 01-03-2013 |
20130206264 | DEVICE AND METHOD FOR MANIPULATING A LIQUID - The invention relates to a device and method for manipulating a liquid in a channel, wherein a body, which forms a capillary intermediate space with respect to the channel wall, is moved in the channel and the channel is filled with liquid only up to the body. Preferably, the body can also bridge an area of the channel that cannot be wetted for the liquid. | 08-15-2013 |
20140130920 | MICROFABRICATED FLUIDIC CIRCUIT ELEMENTS AND APPLICATIONS - A microfabricated fluidic unidirectional valve includes a microfabricated elastomer material having a flow through channel. The microfabricated fluidic unidirectional valve also includes an elastomer flap attached to the elastomer material in the flow through channel. The elastomer flap forms a seal in the flow through channel to prevent fluid from flowing in a first direction through the flow through channel and to allow fluid flow in a second direction through the flow through channel. | 05-15-2014 |
20140360606 | Passive Injection of a Chemical Solution into a Process Stream - A system and method of injecting a chemical into a high pressure process stream without pumps or other active components. The system utilizes the differential pressure created by resistive losses of downstream components within a high pressure process stream. A bypass side stream is taken from an upstream pressure location and returned to the downstream side of the resistive inline process component. The chemical solution vessel is pressurized by the higher side of the pressure differential. The solution then passes through a flow controlling capillary tube exiting on the lower pressure differential side into the bypass stream. The high flow rate chemically diluted bypass stream then returns to the process stream at the lower differential process stream tie-in. The chemical solution is isolated from the process water pressuring the vessel by a movable separating device preventing mixing of the two fluids. The vessel can also be pressurized by gas. | 12-11-2014 |