Matches 1 - 50 out of 122 1 2 3 >
Match Document Document Title
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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.
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...
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...
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...
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...
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...
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...
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...
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...
6669909 Liquid droplet dispensing  
A dispenser ( 1 ) for liquid droplets of the order of 30 μl or less in volume. The dispenser ( 1 ) comprises a metering valve body ( 2 ) having a main bore ( 3 ) connected by a pipe ( 4 ) to a...
6645433 Ergonomic return springless manual air displacement pipette  
An ergonomic, manually precisely controllable return springless air displacement pipette relying upon the friction of a piston seal to maintain a plunger unit of the pipette in any axial location...
6627160 Multiple channel pipetting device  
A multiple channel pipetting device and pipette shaft, in which each pipette shaft has a circumferential seal receptacle inside, at its upper end in which the circumferential plunger seal is...
6620383 Microvolume liquid dispensing device  
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...
6589483 Liquid dispenser  
A liquid dispenser characterized by a dispensing head which is movable upward and downward as a whole and comprises a plurality of plungers supported by a plunger plate, drive means for moving the...
6582664 Multichannel pipette head  
The invention provides multichannel pipette heads and autopipettors for loading, measuring, transporting and dispensing, particularly from one micro-plate to another. An exemplary multichannel...
6550349 Pipette tip holder  
A pipette nozzle that achieves a consistently high quality seal between the nozzle and the interior surface of a replaceable pipette tip is provided. In one aspect, the end portion of the nozzle is...
6540964 Pipette for a pipette system  
A pipette for the handling of a syringe. The pipette has jaw chucks which are adjustably arranged with respect to the plunger receptacle, being pivotably mounted on a plunger-gripping device. The...
6537505 Reagent dispensing valve  
A reagent dispensing valve particularly adapted for dispensing precise microfluidic quantities of fluids. The valve includes a valve portion and a solenoid actuator that are in fluid isolation from...
6461572 Method and apparatus for concentrating a solute in solution with a solvent  
The present invention provides a method, and an apparatus, for forming a prescribed concentration of a substance in a mixture with a fluid, from a comparatively dilute mixture. The mixture is most...
6455006 Apparatus for aspirating and discharging a sample quantity  
It has been hard to suck the high viscosity sample by using the syringe and to stop the suction of the sample. A sample sucking-discharging device in the invention comprises an injector provided...
6440370 Repeater pipette with a hydraulic operating device  
A pipetting system including a syringe ( 2 ), a working piston ( 5 ) connectable with the syringe piston ( 24 ) and extending into a working chamber ( 3 ), an actuating piston ( 7 ) extending into...
6428750 Volume adjustable manual pipette with quick set volume adjustment  
A volume adjustable manual pipette having a hand-holdable housing supporting (i) an electronic digital display and associated position sensing and control circuitry, (ii) a plunger unit and (iii) a...
6387330 Method and apparatus for storing and dispensing reagents  
A method and device for storing and dispensing specified subsets from a collection of tens, hundreds or thousands of different reagents to specified locations within microtitre trays or microarray...
6365110 Blowout springless manual air displacement pipette with mechanical assist for aiding in locating and maintaining pipette plunger at a home position  
A blowout springless manual air displacement pipette including a mechanical assist for generating a mechanical force opposing a return spring force on a plunger unit to aid a pipette user in...
6352673 Ergonomic return springless manual air displacement pipette  
An ergonomic, manually precisely controllable return springless air displacement pipette relying on the friction of a piston seal to maintain a plunger unit of the pipette in any axial location...
6299841 Bilaterally symmetrical battery powered microprocessor controlled lightweight hand-holdable electronic pipette  
A bilaterally symmetrical lightweight hand holdable battery powered microprocessor controlled electronic pipette including an axially elongated hollow housing having a vertically extending...
6258324 Pipette dispensing block  
A pipette dispensing block has an improved piston seal and lift plate engagement/disengagement means. In a pipette dispensing block where a piston is used to create a pressure differential to...
6254832 Battery powered microprocessor controlled hand portable electronic pipette  
A battery powered, microprocessor controlled portable electronic pipette, comprising a hand holdable housing supporting a battery, a linear actuator for driving a plunger lengthwise in a cylinder...
6250154 Oil and gas metering and measuring device  
A fluid metering and measuring device is provided and which is particularly adapted to regulate ratios of oil and gasoline in a mixture of oil and gasoline used, for example, in a two-stroke...
6207112 Piston burette for a burette apparatus  
The piston burette for storing and dispensing a reagent used in analytical or metering work includes a calibrated burette cylinder (11) and a piston (13) slidably mounted in it. The piston burette...
6123905 Pipettor including an indicator and method of use  
A pipettor including a body portion, a cylinder having an interior channel, and a filter plug disposed within the channel is disclosed. The filter plug may include a plurality of pores and may...
6021680 Pipette  
A cylinder 3 in a casing 2 is provided with a first suction chamber 34 and a nozzle part 33 having a suction passage 3d in communication with the first suction chamber 34. In the casing 2. a first...
6006800 Apparatus and method for automatic distribution  
An apparatus for automatic distribution includes a frame (1) having at least a bottom frame portion (1a) and a side frame portion (1b), a tip holding rack (2) and at least one micro plate (4, 5)...
5983733 Manual pipette  
A manual pipette having a cushioned hand grip area and a tip ejector. The ejector is located strategically so that an operator can easily manipulate either the ejector or a pipette fluid plunger...
5906795 Pipetting apparatus  
A chuck mechanism (2) for holding a pipette head (3) is attached to an output end of a reciprocating drive mechanism (1). A chuck control mechanism (5) for controlling the head holding and...
5895838 Method for correcting a liquid dispensing error, and a liquid dispensing device  
The object of the invention is a method for correcting a temperature dependent dispensing error occurring during liquid dispensing, such as pipetting, as well as a liquid dispensing device, such as...
5879633 Ratchet pipette  
The object of the invention is a ratchet wheel pipette having a body and in it a cylinder (3) and a piston (12) and a filling and dispensing arrangement to draw liquid into the cylinder and to...
5849248 Adjustable volume pipette with improved volume adjustment lock mechanism  
A volume adjustable pipette for aspirating and dispensing precise volumes of liquid comprising an elongated hollow hand-holdable housing supporting a plunger for turning and for axial movement...
5783451 Pipetting unit and method for liquids  
A method and system for accurate aspiration and dispensing of fluids and comprising in combination a volumetric pump, a motor, a motor driver, an encoder (device used to measure angular...
Matches 1 - 50 out of 122 1 2 3 >