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Patent Searching and Data


Matches 501 - 550 out of 1,713

Document Document Title
WO/2002/081867A1
An ultrasonic pump (1) in which a medium is pumped by the interaction between longitudinal acoustic waves and the medium in a flow-chamber (12). The pump comprises a transducer (6) and an associated chamber for providing a controllable, ...  
WO/2002/079703A2
The present invention discloses a miniature thermodynamic device that can be constructed using standard micro-fabrication techniques. The device can be used to provide cooling, generate power, compress gases, pump fluids and reduce press...  
WO/2002/068821A2
Devices and methods utilizing dielectric pumping and variable dieletric pumping to move fluids through microchannels. Two fluids having dissamilar dielectric constants form an interface that is positioned between two electrodes in order ...  
WO/2002/069016A2
Devices utilize elements carried by a fluid (4506) in a microchannel (4504) to switch, attenuate, shutter, filter, or phase shift optical signals. In certain embodiments, a microchannel carries a gaseous or liquid slug that interacts wit...  
WO2002029106A3
A microfluidic device comprises pumps, valves, and fluid oscillation dampers. In a device employed for sorting, an entity is flowed by the pump along a flow channel through a detection region to a junction. Based upon an identity of the ...  
WO/2002/053921A2
A device (2) for moving a fluid in a fluidic system. The device may include one or more controllably openable closed chambers (10). The pressure within the closed chamber(s) (10) is lower than ambient pressure outside the fluidics system...  
WO2002006065A3
A new inflating device (10) and method for inflating an inflatable object are described. The inflating device includes two compartments: one (1) containing a gas-generating agent and the other (12) containing an activating agent. When mi...  
WO/2002/040865A1
An apparatus comprising adjacent first and second chambers (4, 6) which communicate via a connecting aperture (14) at their interface, and means (10) for supplying the first chamber (4) with fluid to a pre-determined level, the second ch...  
WO2002007292A3
An electrohydrodynamic (EHD) conduction pump is provided for pumping dielectric liquids, and a particular adaptation for mass transport of isothermal and non-isothermal single phase liquids. The EHD conduction pump does not require direc...  
WO/2002/029106A2
A microfluidic device comprises pumps, valves, and fluid oscillation dampers. In a device employed for sorting, an entity is flowed by the pump along a flow channel through a detection region to a junction. Based upon an identity of the ...  
WO/2002/027294A2
The invention relates to a biochip comprising a sensor unit for measuring the components of body fluids or cell cultures, especially for measuring the components of capillary, venous or arterial blood. The biochip is provided with a micr...  
WO/2002/018785A1
According to the present invention, there is provided a micro-fluidic sensor system (6) including a micro-conduit (56) for carrying fluid therethrough having a flexible wall portion (18), at least one micro-fluidic actuator having a clos...  
WO2001070397A3
An improved microfluidics device and system for sample loading and injection are disclosed. The device includes three main channels--a separation channel, supply channel, and drain channel--for use in loading and injecting a sample from ...  
WO/2002/016046A1
Liquid is introduced into a channel (12), of cross sectional dimension of the order of 10 microns to 100 microns, of a micro-fluidic device by creating electrically charged aerosol droplets, of diameter of the order of 1 or 2 microns, at...  
WO/2002/010590A1
A resonator pump system (10) includes a resonating structure (14) configured for resonating, and a fluid pump (18) coupled to and driven by the resonating structure. An energy source (60) is operatively coupled to the resonating structur...  
WO/2002/007503A1
An apparatus and method for micropumping is disclosed. The apparatus (100) comprises a virtual or physical microchannel (106) and at least two hydrophobic electrode patches (104A-104G) on a surface (102) or two electrode patches disposed...  
WO/2002/006065A2
A new inflating device (10) and method for inflating an inflatable object are described. The inflating device includes two compartments: one (1) containing a gas-generating agent and the other (12) containing an activating agent. When mi...  
WO/2002/007292A2
An electrohydrodynamic (EHD) conduction pump is provided for pumping dielectric liquids, and a particular adaptation for mass transport of isothermal and non-isothermal single phase liquids. The EHD conduction pump does not require direc...  
WO/2001/094017A1
The invention relates to a method for specific, directed manipulation of small quantities of materials on solid surfaces. According to said method, surface waves are generated with at least one surface wave generation device and the impu...  
WO2000057173A9
A fluidic driver system for use with a cartridge in a microfluidic analysis instrument. The driver system includes linear pumps, differential pumps, fluidic capacitive filters, and face seal assemblies which act to provide a consistent a...  
WO/2001/070397A2
An improved microfluidics device and system for sample loading and injection are disclosed. The device includes three main channels--a separation channel, supply channel, and drain channel--for use in loading and injecting a sample from ...  
WO/2001/037960A1
Femtoliter to milliliter volumes of one or a plurality of different liquids are accurately dispensed electrokinetically without any direct electrical contact with such liquid(s). This is accomplished with apparatus which creates an elect...  
WO/2001/033133A1
Arrangement in a lubricant pump (1) comprising a housing (6) equipped with outlets (9) and lubricant chamber (2). An electrical arrangement (19) is adapted to drive an axially displaceable piston (12) in an axial cylindrical bore in the ...  
WO/2001/003911A1
A new composition, method, and apparatus for sealing and inflating a flat tire are described. The new composition includes a gas-generating agent and an activator, along with a sealant. In use, a gas propellant is generated in situ when ...  
WO/2000/079130A1
Vibratory pump provided with diameter smaller than the diameter normally observed, proper to house the pump inside the tubular well; said pump is still provided with cooling device of the drive solenoid set (10), that consists in inverti...  
WO/2000/079131A1
A method for eliminating gas bubble blockage of current flow during operation of an electrokinetic pump. By making use of the ability to modify the surface charge on the porous dielectric medium used in electrokinetic pumps, it becomes p...  
WO/2000/075512A1
The invention relates to a pump cylinder in which a pump plunger is located which divides the cylinder into a front and a rear part. In the front part, said pump cylinder has a connection for sucking in the medium to be conveyed. The rea...  
WO2000045051A3
A micro-pump pumps either electrically conductive or non-conductive liquids through channels of the micro-pump and/or micro-devices. A conductive or non-conductive liquid, depending on the specific application of the present invention, i...  
WO/2000/073655A1
The invention concerns a device for diffusing drops of at least one liquid, comprising at least a liquid displacement path defined by a series of pairs of very close surfaces (4a, 6a, to 14a) for retaining and moving the liquid from one ...  
WO/2000/065231A1
The invention relates to a piston pump (10) for a hydraulic vehicle brake system having, in particular, slip-control. The invention provides that the piston (16) is configured as a hollow piston and is sealed by a piston sealing (28) whi...  
WO/2000/065234A1
The invention relates to a piston pump (10) for a hydraulic, slip-controlled vehicle braking system. The aim of the invention is to reduce the length of said piston pump (10). To this end, a piston (16) of the piston pump (10) is configu...  
WO/2000/064717A1
The invention relates to a piston pump (10) for a slip-controlled, hydraulic vehicle brake system. The aim of the invention is to provide a piston pump (10) which comprises a short construction. To this end, a piston (16) of the piston p...  
WO/2000/056443A1
The invention relates to a device for applying at least one micro-droplet on a substrate (2), comprising a dosing head body (8) having at least one dosing hole (14). A drive device (4) is provided to impinge upon the dosing head (8) and ...  
WO/2000/056442A1
The invention relates to a fluids manipulation device comprising a substrate (20) having a first surface (21) and a second surface (23). A plurality of fluid inlets (28), preferably media reservoirs, following a first pattern is formed o...  
WO/2000/057173A1
A fluidic driver system for use with a cartridge in a microfluidic analysis instrument. The driver system includes linear pumps, differential pumps, fluidic capacitive filters, and face seal assemblies which act to provide a consistent a...  
WO/2000/055502A1
An electrokinetic high pressure hydraulic pump for manipulating fluids in capillary-based systems includes (i) a microchannel having a fluid inlet and outlet and a porous dielectric material disposed in said microchannel; (ii) an electro...  
WO2000021659A9
A multilayered microfluidic device having a substantially monolithic structure is formed by sintering together a plurality of green-sheet layers. The substantially monolithic structure has an inlet port for receiving fluid, an outlet por...  
WO/2000/051221A1
The invention relates to a device (1) for generating electrical power, comprising an inertia mass (3) which is placed in a frame or a housing (2) in such a way that it can oscillate and a first generator (4) which is connected thereto an...  
WO/2000/045051A2
A micro-pump pumps either electrically conductive or non-conductive liquids through channels of the micro-pump and/or micro-devices. A conductive or non-conductive liquid, depending on the specific application of the present invention, i...  
WO/2000/034654A1
The present invention relates to a method for pumping gas-liquid mixtures and to a piston pump characterised in that a gas-liquid mixture is fed into a working chamber during the suction stroke and the compression stroke of the gas, wher...  
WO2000007735A3
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/2000/021659A1
A multilayered microfluidic device having a substantially monolithic structure is formed by sintering together a plurality of green-sheet layers. The substantially monolithic structure has an inlet port for receiving fluid, an outlet por...  
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/2000/006890A1
A pump for pumping fluid including: a pump body (7) having a pumping chamber (14) therein; an inlet control means (23) adapted to be in fluid communication with a fluid supply means for supplying fluid to the pump; and an outlet control ...  
WO/2000/006900A1
An improved vibration-actuated pump (39) for a vibrating machine (11) includes operative ends (39a, 39b), each of which has an end block (51, 59) with a fluid path therethrough comprised of a fluid inlet (53, 61), fluid outlet (55, 63) a...  
WO1999050524A3
A positive-displacement pump (102) includes multiple pumping elements (355, 356). Each pumping element having a pressure vessel (356) with a first (372) and a second (370) chamber and a separating member (362) disposed between the first ...  
WO/1999/055283A1
In a spa water circulation system, the spa (200) including wall structure (201) facing toward a water reception zone (202) and comprising a plurality of water pumps (203) associated with the wall structure, the pumps spaced about the zon...  
WO/1999/050524A2
A positive-displacement pump (102) includes multiple pumping elements (355, 356). Each pumping element having a pressure vessel (356) with a first (372) and a second (370) chamber and a separating member (362) disposed between the first ...  
WO/1999/049173A1
A rotating diverter (108) for isolating fluid in a well (30) from other fluid above the well (30) is provided. The rotating diverter (108) includes a housing body (162) which has a bore (168) running through it. A retrievable spindle ass...  
WO/1999/049172A1
A system (10) for drilling a subsea well (30) from a rig (20) through a subsea wellhead below the rig (20) includes a wellhead stack (37) which is mounted on the subsea wellhead. The wellhead stack (37) comprises at least a subsea blowou...  

Matches 501 - 550 out of 1,713