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| Number | Title | Issue Date |
| 8398934 | Coupling system for use with fluid displacement apparatus A magnetic coupling system may be used in a fluid displacement apparatus to magnetically couple a drive shaft to a piston. The magnetic coupling system may include first and second magnetic couplers at the ends of the drive shaft and piston, respectively. The first ... | 03/19/2013 |
| 7972575 | Two-phase pipette The invention relates to a two-phase electronic pipette, in which the piston can be moved from the basic position to the lower position and in which the distance between basic position and lower position can be changed. ... | 07/05/2011 |
| 7770475 | Hybrid manual-electronic pipette A hybrid manual-electronic pipette combines a manually driven piston with real-time electronic measurement of liquid volume and piston displacement while compensating for both pipette-specific and pipette model-specific variations. The hybrid nature of the pipette f... | 08/10/2010 |
| 7748281 | Dispensing apparatus, dispensing method, and analyzer A dispensing apparatus includes a syringe which has a piston and sucks and discharges a liquid; and a storage unit which stores therein a reference driving profile indicating a reference of a driving position and a driving time at starting the piston. The apparatus ... | 07/06/2010 |
| 7438858 | Dispensing assembly for liquid droplets A dispensing assembly for liquid droplets that includes a dispenser connected to a liquid carrying pipe which in turn is connected to a source of pressurized liquid. The dispenser has an elongated body member having a main bore connected to the liquid carrying pipe.... | 10/21/2008 |
| 7438857 | Liquid handling tool having porous plunger A robotically manipulable sample handling tool, such as a colony picking head or robotic pipetting tool, includes needles arranged on the tool. Actuators are associated with each needle to control flow for the needle. A plurality of plungers are each associated with... | 10/21/2008 |
| 7421913 | Pipette Pipette having an axially relocatable control button, a pressure sensor, which is integrated into the control button, a lifting rod, coupled with the control button and having a stopping bead, a hollow driving spindle, accommodating the lifting rod and being axially... | 09/09/2008 |
| 7418880 | Sample collector using a syringe with a side port in the barrel A modified syringe collects samples of a fluid without removing volatile compounds by forming a vacuum within a sample collection vial. A fluid sample is drawn into the collection vial by means of the applied vacuum. ... | 09/02/2008 |
| 7413711 | System for dispensing a precise amount of fluid A dispensing system delivers a precise amount of fluid for biological or chemical processing and/or analysis. Dispensing means moves the fluid. The dispensing means is operated by a pneumatic force. Connection means delivers the fluid to the desired location. An act... | 08/19/2008 |
| 7402286 | Capillary pins for high-efficiency microarray printing device This invention provides improved components (e.g. array “pins”, print head, substrate platen, print head platen, and the like) for microarray printing devices as well as microarray printing devices incorporating such components. In one embodiment, this invention... | 07/22/2008 |
| 7378058 | Method and apparatus for modifying pressure within a fluid dispenser A fluid dispenser useful in methods and apparatuses for automated biological reaction systems including a barrel, a coupler, a piston associated with the barrel, and a sealing surface that seals the inner diameter against fluid flow at the lower extent of the piston... | 05/27/2008 |
| 7320260 | Pipetting device with a displacement device and a drive device releasably connected therewith Pipetting device with a displacement device with a displacement chamber with a displaceable limiter, a attachment for connecting to a pipette tip and a connecting channel between the displacement chamber and the free end of the attachment, a drive device for driving... | 01/22/2008 |
| 7264779 | Pipette with tip ejector The sampling pipette includes an ejector arm for separating from the pipette a cone that is fixed to the pipette. The pipette includes adjustment means enabling the length of the arm to be varied continuously over a range of values. ... | 09/04/2007 |
| 7171863 | Transfer unit and automatic analyzing apparatus having such transfer unit A transfer unit for transferring members such as reaction vessels having an upper end opening or dispensing tips or the like includes at least one arm pivotally movable about a shaft and a holder mounted on the arm for detachably supporting the member to be transfer... | 02/06/2007 |
| 7159740 | Method and apparatus for parallel dispensing of defined volumes of solid particles A sample preparation system provides an automated process that dispenses appropriate amounts of solid material into wells of a microtiter plate for mixing into a suspension. The system utilizes an array of hollow tubes that are lowered into a particle reservoir such... | 01/09/2007 |
| 7125727 | Sample handling tool with piezoelectric actuator A material handling tool includes a piezoelectric motor that causes actuation of a needle. Actuation of the needle may include aspiration and/or dispensing of a fluid sample and/or movement of the needle to pick or place a material sample. ... | 10/24/2006 |
| 7105130 | Adjustable pipette A pipette includes a housing defining a suction chamber. A piston is configured to move in the suction chamber. A first retainer mechanism includes a first threading configured to limit a motion of the piston in the suction chamber. A second retainer mechanism inclu... | 09/12/2006 |
| 7081228 | Apparatus for preparing a fluid sample aliquot A sample aliquot pipette tip (SAT) includes a pipette tip and a sample aliquot cup. The pipette tip is collapsible. The sample aliquot cup is arranged above the pipette tip and is fluidly coupled with the pipette tip. The SAT works in concert with a tip aliquot supp... | 07/25/2006 |
| 7077018 | Cleanable volume displacement pipetter A volume displacement pipette that includes a channel within the piston. The channel allows for cleaning fluids to be continuously run through the pipette tip for cleaning the tip. One end of the channel may be closed during normal operation of the pipette. Multiple... | 07/18/2006 |
| 7047828 | Pipette tip with an internal sleeve and stabilizing projections A pipette tip member has an elongated tubular receptacle including a sidewall with a plurality of stabilizing projections extending from the sidewall for aligning the pipette shaft, and a sidewall with a bifurcated section that includes first, second, and third side... | 05/23/2006 |
| 7036917 | Device for parallel metering of liquids A device for parallel metering of a liquid with the following features: the device has a first body; the first body has a main channel, secondary channels, one inlet and outlets; the main channel i... | 05/02/2006 |
| 7013310 | Method and apparatus for retrieving and processing data Data is captured from a web site or other data source. Data is extracted from the web page using a data harvesting script or other data acquisition routine. The extracted data is then normalized and stored in a database. If data cannot be extracted from the web page... | 03/14/2006 |
| 6989132 | Liquid transfer apparatus and reaction vessel A capillary 1 is moved to a position above a vessel 17 having a solution 15 stored therein. Then, the vessel 17 is raised while the inside of a tube 5 is opened to an ambient pressure until one end 1a of the capillary... | 01/24/2006 |
| 6977062 | Automatic pipette identification Mechanisms are provided for automatically removing tips from a pipette nozzle and/or for detecting the type of tip mounted to the nozzle. For detipping, mechanical energy is stored when the tip is mounted to the nozzle and is released when the tip is to be removed t... | 12/20/2005 |
| 6973845 | Low insertion force tip/mandrel A pipette assembly for automatic pipetting machines including a stepped mandrel and tip for providing a minimum contact seal between the pipette tip and mandrel. The mandrel includes a first cylindrical portion with a first exterior diameter and a second cylindrical... | 12/13/2005 |
| 6955077 | Pipette tip with an internal sleeve and method for forming same A pipette tip member having an elongated tubular receptacle having a sidewall with a bifurcated section that comprises first, second, and third sidewall portions. The first sidewall portion comprises a base wall and the second and third sidewall portions branch ther... | 10/18/2005 |
| 6945128 | Fluid dispenser A method and apparatus for an automated biological reaction system is provided. In the processing of a biological reaction system, there is a need for consistently placing an amount of fluid on a slide. In order to accomplish this, several methods are used including... | 09/20/2005 |
| 6926867 | Pipette piston seal assembly A piston seal assembly for a pipette includes an O-ring having radially inner and outer surfaces and axially separated first and second surfaces. A seal includes a radially extending rim portion having axially separated first and second surfaces and an axially exten... | 08/09/2005 |
| 6923938 | Hand-held pipettor A hand-held pipettor comprising a piston received in one end of a cylinder, a pipettor tip removably secured to an opposite end of said cylinder, means for reciprocating said piston through a selected stroke to aspirate fluid into and to expel the thus aspirated flu... | 08/02/2005 |
| 6902704 | Injection pump assembly for a combinatorial reactor and related method An injection pump assembly 10 in a chemical delivery system for simultaneously delivering reagents into a combinatorial reactor system having multiple injectors. The assembly 10 has a plurality of injectors 12, each injector 12 being in f... | 06/07/2005 |
| 6840121 | Self-powered fluid sampler An automatic fluid sampler includes a substantially watertight housing and a structure for drawing fluid from outside the housing, wherein the fluid drawing structure is powered by stored potential energy within the housing. A method of automatic fluid sampling empl... | 01/11/2005 |
| 6838278 | Device for cell transfer A device for transferring cells present in fluid media is provided which is especially useful for in vitro fertilization techniques and intracytoplasmic sperm injection procedures. ... | 01/04/2005 |
| 6814936 | Pipette assembly having a small volume disposable tip A pipette assembly (10) having a suction device (12 or 52) and a small volume disposable tip (14) having a capacity with a range of 0.1 μl to 2.0 μl, the disposable tip being removably secured to the suction device. The suction device i... | 11/09/2004 |
| 6805015 | Dual resolution syringe A syringe for accurately metering small volumes of fluid samples and with dual resolution capabilities is provided. The syringe permits the aspiration of a tiny sample and also the dilution of a tiny sample with a much larger volume of reagent with the same syringe.... | 10/19/2004 |
| 6787367 | Suction device A method for detaching a barrier means adapted to the end part of the suction device for closing an opening in the end part by the movement of a plunger intended for changing the volume of a cylindrical space provided in the end part whereby the barrier means is rem... | 09/07/2004 |
| 6780648 | Method and system for selectively distributing luminescence material precursors A method comprises positively displacing a first candidate luminescence material precursor from a dispenser to a first position of an array, displacing a second candidate luminescence material precursor from a dispenser mechanism to a second position of an array and... | 08/24/2004 |
| 6713021 | Dispensing method and assembly for liquid droplets A dispensing assembly for liquid droplets that includes a dispenser connected to a liquid carrying pipe which in turn is connected to a source of pressurized liquid. The dispenser has an elongated body member having a main bore connected to the liquid carrying pipe.... | 03/30/2004 |
| 6709872 | Method and apparatus for dispensing low nanoliter volumes of liquid while minimizing waste There is provided a method and apparatus for aspirating a volume of liquid into a syringe from a sample of the liquid. A substantial portion of the liquid in the syringe is subsequently dispensed from the syringe and returned to the sample. Accordingly, a small port... | 03/23/2004 |
| 6706538 | Microvolume liquid dispensing array Devices and methods for integrated packaging, shipping, storage and precise dispensing of extremely small volumes of liquids such as aqueous solutions and compounds dissolved in organic solvents are disclosed. Devices of the invention include a sealed reservoir with... | 03/16/2004 |
| 6702990 | Spot picker A spot picker is comprised of a pipette and a disposable cutting tip. The pipette is comprised of a housing with a suction tube projecting from a lower end. An actuation button is positioned at the top end of the housing. The actuation button is connected... | 03/09/2004 |
