U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 137/827 - By non-fluid energy field affecting input (e.g., transducer)


Subclass of Class 137 - Fluid handling
Definition: Device wherein said means causes the generation of force
No. of applications: 45
Last issue date: 05/05/2011


1    
Application No.Application TitleIssue Date
20110100495MICROFLUIDIC 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 havi...
05/05/2011
20100307601METHOD AND DEVICE FOR CONDITIONING A SUSPENSION CONTAINING MAGNETIZABLE PARTICLES
Methods comprising: providing a suspension comprising magnetizable particles; and delivering the suspension through a gap (3), wherein a magnetic field is applied in the gap, such that the suspension is sheared in the gap in the presence of the magnetic field to ...
12/09/2010
20100277721OPTOFLUIDIC DEVICES
An optofluidic device forming a liquid grating, a liquid detector or a liquid emitter and method(s) of operation....
11/04/2010
20100200073FLUID TRANSPORT DEVICE AND FLUID TRANSPORT CONTROL METHOD
A fluid transport device transports fluid containing electrolytes within a flow channel. At least a portion of the inner walls of the flow channels are hydrophilic from the inlet to the outlet thereof except at least one valve portion. The device also includes: the valv...
08/12/2010
20100176322ELECTROACTIVE POLYMER DEVICES FOR CONTROLLING FLUID FLOW
The invention describes devices for controlling fluid flow, such as valves. The devices may include one or more electroactive polymer transducers with an electroactive polymer that deflects in response to an application of an electric field. The electroactive polymer ma...
07/15/2010
20100163130PRESSURE 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...
07/01/2010
20100139797Magnetically actuated microfluidic mixers
In one embodiment as described in this section, an apparatus for mixing of microfluidic streams on a chip is presented, which comprises a micro-channel and a plurality of magnetic valves on the chip. A guiding magnet produces a proximal magnetic field gradient to exert ...
06/10/2010
20100132797MICROFLUIDIC SYSTEM BASED ON ACTUATOR ELEMENTS
The present invention provides a microfluidic system comprising at least one microchannel (18) having an inner wall (17). The microfluidic system comprises attached to the inner wall (17) of the at least one microchannel (18) a plurality of c...
06/03/2010
20100059122Controlling Fluid Through an Array Of Fluid Flow Paths
A method of controlling fluid through a layer of a soft compressible (e.g., gel) material including an array of fluid flow paths. The fluid flow paths are normally open, allowing fluid flow. An electric field is applied in regions where fluid flow is undesirable. The el...
03/11/2010
20100000620MICROFLUIDIC LIQUID-MOVEMENT DEVICE
The invention concerns a microfluidic liquid-movement device.

The movement device according to the invention comprises a microchannel (10) provided with an opening (11B) onto the environment, the microchannel (10) being...

01/07/2010
20090308473MICRO-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 actin...
12/17/2009
20090294231Magneto-rheological fluid damper having enhanced on-state yield strength
Please replace the Abstract with the following amended Abstract: A magneto-rheological fluid valve includes a magnetic field generator having at least one electromagnetic coil and at least one magnetic pole having a pole length Lm. The magneto-rheological flu...
12/03/2009
20090283148MICROCHIP AND CHANNEL STRUCTURE FOR THE SAME
A microchip includes a channel permitting a sheath liquid to flow therethrough; and a microtube for introducing a sample liquid into a laminar flow of the sheath liquid flowing through the channel; wherein liquid feeding is performed in the condition where a laminar flo...
11/19/2009
20090260692AUTONOMOUS ELECTROCHEMICAL ACTUATION OF MICROFLUIDIC CIRCUITS
A microfluidic structure with an electrically controlled pressure source is shown. The pressure source is an electrolyte connected with electrodes. Dissociation of the electrolyte generates the pressure, which is used to obtain a valve-like or pump-like behavior inside ...
10/22/2009
20090235990Monodisperse Microdroplet Generation and Stopping Without Coalescence
A system for monodispersed microdroplet generation and trapping including providing a flow channel in a microchip; producing microdroplets in the flow channel, the microdroplets movable in the flow channel; providing carrier fluid in the flow channel using a pump or pre...
09/24/2009
20090211645VIBRATION-DRIVEN DROPLET TRANSPORT DEVICES HAVING TEXTURED SURFACES
Methods and devices for moving a droplet on an elongated track on a textured surface using vibration. The elongated track on the textured surface includes a plurality of transverse arcuate projections such that a droplet on the surface is in the Fakir state and when the...
08/27/2009
20090200501ELECTROACTIVE POLYMER DEVICES FOR CONTROLLING FLUID FLOW
The invention describes devices for controlling fluid flow, such as valves. The devices may include one or more electroactive polymer transducers with an electroactive polymer that deflects in response to an application of an electric field. The electroactive polymer ma...
08/13/2009
20090199917Microfluidic 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 sa...
08/13/2009
20090188576CHECK 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...
07/30/2009
20090165877ACTUATOR ELEMENTS FOR MICROFLUIDICS, RESPONSIVE TO MULTIPLE STIMULI
A micro-fluidic system comprises at least one micro-channel having a wall (14), a plurality of ciliary actuator elements (71) attached to said wall (14), said ciliary actuator elements (71) having an original shape when not subjected to a liq...
07/02/2009
20090126813Liquid-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...
05/21/2009
20090117664LIQUID SENDING METHOD OF LIQUID IN SUBSTRATE CHANNEL AND LIQUID SENDING APPARATUS
A liquid sending method includes the step of introducing either one fluid of a gas or an insulating liquid into a channel disposed on a substrate, thereby dividing a liquid flowing in the channel and sending the liquid....
05/07/2009
20090090422Method 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 (12) through which the drops flow, characterized in that a laser (26) is brought to bear on the interface of said drops in the transport liqu...
04/09/2009
20090078326LIGHT-DRIVEN MICROFLUIDIC DEVICES AND AMPLIFICATION OF STIMULUS-INDUCED WETTING
Disclosed are compositions and methods for producing movement of liquid across surfaces....
03/26/2009
20090044875MICROFLUIDIC SYSTEM
Microfluidic system (1, 2, 10, 11, 16) comprising a first portion (3, 4, 24, 25) and a second portion (5-7), said first portion (3, 4) comprising a material which is able to change its volume when activated by an exciting factor, chara...
02/19/2009
20090000665APPARATUS AND METHOD FOR INDUCING CONTROLLABLE JETS IN LIQUIDS
A method for inducing a controllable jet in a transparent liquid is disclosed. The method comprises providing a gas-liquid interface, providing a laser source and generating a beam comprising a sequence of laser pulses, and focusing the beam to a target location within ...
01/01/2009
20080314465MICROFLUIDIC 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 firs...
12/25/2008
20080271799Microfluidic 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...
11/06/2008
20080274038Flow Control Device, Microreactor and Use Thereof
A microreactor containing a plurality of introduction channels 21 and 22 for introducing a plurality of liquids, a merging section 23 for merging the plurality of introduction channels 21 and 22, and a reaction channel 41 locate...
11/06/2008
20080264506System 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,...
10/30/2008
20080245430PLASMON 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 physi...
10/09/2008
20080196778Microfluidic Circuit Having an Active Component
A microfluidic circuit comprising microchannels (24, 26) containing different fluids (F1, F2), with a laser beam being focused at (32) on an interface (30) between the fluids so as to form a pump, a valve, or a mixer, for example....
08/21/2008
20070163663Fluid logic device
Novel fluid logic devices are disclosed. Certain examples of the fluid logic devices include two or more fluid logic gates that are each operative to select and/or direct analytes in a sample into one or more fluid flow channels in communication with the fluid logic gat...
07/19/2007
20070151615Bulk fluid flow gate
A bulk fluid flow gate is provided. In accordance with certain exemplary embodiments the bulk fluid flow gate includes a first and second entry port and first and second exit ports. Bulk fluid is flowed into the chamber to provide greater hydrodynamic resistance at the ...
07/05/2007
20070139879Cooling technique using multiple magnet array for magneto-hydrodynamic cooling of multiple integrated circuits
A cooling apparatus uses a plurality of pipes to cool one or more integrated circuits disposed on a circuit board. The cooling apparatus uses an array of magnets to create magnetic fields across segments of the plurality of pipes. Electrical currents are induced across ...
06/21/2007
20070089795Plasma actuator
An actuator including a first and second conductor on a dielectric, wherein application of a voltage to the first conductor creates a plasma, thereby modifying a fluid flow in communication with the actuator. Related systems and methods are also provided. ...
04/26/2007
20070034269Method of controlling fluid
There is provided a method of controlling a flow of a fluid in a microchannel, in which a part of a surface of the microchannel is a hydrophilization portion comprised of a substance being capable of decreasing a contact angle of water by irradiation of light, and the m...
02/15/2007
20060278288Microfluidic 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 ...
12/14/2006
20060219308Microvalve 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 section where the inlet portion and the outlet portion meet, existing in a solid s...
10/05/2006
20060169339Microvalve device and apparatus adopting the same
A microvalve device is provided. The microvalve device uses electrolysis and uses a hydrogel swelling and deswelling in response to anions or cations as an actuator for controlling the path of a flowing fluid. The microvalve device does not require a buffer solution but...
08/03/2006
1    
 
Sign InRegister
Username  
Password   
forgot password?