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| Number | Title | Issue Date |
| 7469607 | Sampling needle and sample injection apparatus A sampling needle is disclosed that includes a sampling part that is inserted into a sample, and a sample holding part that holds the sample that is introduced through the sampling part. The sampling part and the sample holding part are arranged into a seamless stru... | 12/30/2008 |
| 7381372 | Sample suction apparatus A sample suction apparatus includes: first through third members; a drive source; and a suction needle provided on the third member. The drive source reduces a distance between the first member and the third member to perform: a first action of shifting the first me... | 06/03/2008 |
| 7338088 | Connector A connector is provided for selectively coupling one or more lines or wires (19′, 19″) to a receiving and/or transporting device (27). The connector comprises at least one line or wire receiving ferrule (7) having a plurality of line and/or ... | 03/04/2008 |
| 7337653 | Liquid chromatography specimen filling method A sample injection apparatus and sample injection method capable of sufficiently reducing carry-over, having simple cleaning means for a short cleaning time period, a small influence of vibration of the cleaning means, and a small error in the amount of injected sam... | 03/04/2008 |
| 7305896 | Capillary fill test device A device for receiving a sample of liquid, such as a sample of bodily liquid which is to be subjected to further analysis, may include a body having at least a major surface and a minor surface. A sample-receiving chamber may be located in the body and may have an i... | 12/11/2007 |
| 7222058 | Method of modeling and sizing a heat exchanger A method of modeling a heat exchanger is disclosed and comprises assigning input temperatures, assumed output temperatures, and a set of flow rates, inputting the parameters into a set of equations arranged to calculate a heat transfer coefficient, inputting paramet... | 05/22/2007 |
| 7186384 | Sample entry device for delivering medical samples to an analyzer The invention relates to a sample entry device for delivering medical samples, preferably blood samples, from diverse sample containers to an analyzer, wherein sample transfer between sample intake and measuring cells of the analyzer taking place via gas-tight sampl... | 03/06/2007 |
| 7146867 | Proportioning device A proportioning device, comprising a manually operable actuating device, a sensor associated with the actuating device for detecting a force manually exerted on the actuating device, an electric driving motor, an electric control connected to the sensor and electric... | 12/12/2006 |
| 7131341 | Method and apparatus for detection of trace volatiles A method and apparatus for the detection of trace volatiles such as those produced by fungal decay of timber, comprising a sampling probe (10), comprising a housing (11) and bored barrel (12) adapted removably to receive an SPME device (14 | 11/07/2006 |
| 6941825 | Analytical devices based on diffusion boundary layer calibration and quantitative sorption A method and device for determining the concentration of analytes in a sample. The device has a surface with an extraction coating thereon. The method is carried out while the sample is highly agitated to maintain a substantially constant boundary layer. The sample ... | 09/13/2005 |
| 6804984 | Sheath liquid supplying apparatus, sheath liquid supplying method, and evaluating method of sheath liquid supplying condition A sheath liquid supplying apparatus includes a syringe including a piston and a cylinder slidably accommodating the piston and a stepping motor for causing the piston to slide in the cylinder, wherein the cylinder has an injection/suction hole of a sheath liquid pos... | 10/19/2004 |
| 6666100 | Sample injector with interface-control lever A manual sample injector includes a syringe holder, a plunger driver, and an interface. An interface-control lever attached to the interface can assume "extraction", "injection", and "safety" orientations. In its safety orientation, the interface-control ... | 12/23/2003 |
| 6588255 | Analytical devices based on diffusion boundary layer calibration and quantitative sorption A method and device for determining the concentration of analytes in a sample. The device has a surface with an extraction coating thereon. The method is carried out while the sample is highly agitated to maintain a substantially constant boundary layer. ... | 07/08/2003 |
| 6578409 | Method and device for determining the threshold of heavy fraction deposit contained in a liquid hydrocarbon fluid The invention concerns a method whereby a fluid sample is brought (1) at constant pressure Pe and temperature maintaining the heavy fractions, in particular asphaltenes, in dissolved state and/or in stable colloidal state, at the intake (4) of a capillary... | 06/17/2003 |
| 6537827 | Method and device for solid phase microextraction and desorption A device for carrying out solid phase microextraction is a fiber contained in a syringe. When it is desired to analyze a sample in a bottle having a septum, the needle is inserted through the septum and the plunger is depressed so that the fiber will exte... | 03/25/2003 |
| 6481301 | Needle trap A hand-held syringe-like device has needle containing a trap with a barrel and plunger to draw air into and out of the needle through the trap. In a method of operating the device, particulate matter in air is retained in the trap and subsequently analyte... | 11/19/2002 |
| 6301952 | Gas chromatographic device A gas chromatographic device has an inlet system, a column and a pressure reducing means combined and assembled in such a series arrangement that provides adequate system performance with shorter wide bore column length and shorter sample analysis times n... | 10/16/2001 |
| 6257076 | Sample injector with plunger release for chemical analysis systems A manual sample injector for a gas chromatograph comprises a syringe holder, a plunger driver including a volume-adjust assembly, an injection port interface, a release lever, and a force-calibration spring. The holder, driver, and interface collectively ... | 07/10/2001 |
| 6180060 | Analyzer transport device A sample transport device for use in analyzing samples by the headspace analysis technique. The device has a cylindrical platen with counterbored chambers for accepting sample vials. The platen is heated and caused to rotate from a first vial transport po... | 01/30/2001 |
| 6168759 | Analyzer transport device A sample transport device for use in analyzing samples by the headspace analysis technique. The device has a cylindrical platen with counterbored chambers for accepting sample vials. The platen is heated and caused to rotate from a first vial transport po... | 01/02/2001 |
| 6155123 | Multivalving sample injection system A sample inject valve system is described, which enables a modified sample injection valve to perform many functions that are required to inject a sample into a chromatographic column, to minimize the amount of laboratory table space previously occupied b... | 12/05/2000 |
| 6146895 | Method of static headspace analyzer A method of preparing a volatile sample from a material for gas chromatographic analysis includes the steps of: introducing a vial with the material containing the volatile sample and a headspace therein into a chamber of a platen adapted to transport the... | 11/14/2000 |
| 6098471 | Diluting and measuring device for particle counting A device for particle counting includes a metering device for metering a volume of a liquid sample containing particles and a cylinder for dosing a volume of a diluting liquid to a dilution chamber. The cylinder has first and second ends and a piston. A c... | 08/08/2000 |
| 5861317 | Automatic sample injector and method of operating same An automatic sample injector for injecting a liquid sample into a vaporization chamber of a gas chromatograph includes a syringe, a plunger adapted to move inside the barrel of this syringe, a stepping motor having a plurality of magnetic poles for moving... | 01/19/1999 |
| 5783742 | Method of injecting a sample into gas chromatograph A sample is injected into a gas chromatograph by first slowly causing a needle of a syringe containing the sample to penetrate a septum and be inserted into a sample vaporization chamber and then quickly pushing a plunger to inject the sample into the sam... | 07/21/1998 |
| 5770159 | Pipette for dispensing successive volumes of liquid The invention relates to a pipette for dispensing successive volumes of liquid by repeated action on a pusher (22). A drive lever (26) is provided to drive a pushrod (15) and a piston rod (5) downwards only. The lever (26) extends transversely to the long... | 06/23/1998 |
| 5747350 | System for dosing liquids A system for dosing liquids includes a dosing device, a device for operating the dosing device, a device for entering data and a unit for calculating the dosing displacement. Data are allocated to a dosing device according to the invention which are chara... | 05/05/1998 |
| 5463910 | Multi-function aspirating device A housing pivotally supports a door which is interconnected with an arm carrying a hollow probe. A fillport module is slidable into operative position within the housing. The module supports a resilient fillport having an opening through which fluid passe... | 11/07/1995 |
| 5400666 | Methods and apparatus for automated on-column injection using a slender needle Methods and apparatus for preventing the failure of slender syringe needles used for on column injection in gas chromatographs are disclosed. A needle holder designed to support the needle precludes bucking deflection beyond the maximum allowable value. I... | 03/28/1995 |
| 5363707 | Headspace sampling system Methods and apparatus for collecting gasses from the sample headspace of a sealed sample container are disclosed. The gasses in the sample headspace are withdrawn by inserting a probe into the sample headspace and permitting the gasses to flow into an ext... | 11/15/1994 |
| 5270211 | Sample tube entry port for a chemical analyzer A sample tube entry port for an automatic chemical analyzer supports individual draw tubes that are manually delivered to the analyzer at a sample access station. The entry port facilitates removal of samples by the pipette without exposing operating pers... | 12/14/1993 |
| 5240679 | Automatic apparatus for inserting pipetting insert into stopper of a sample vessel Apparatus for the automatic introduction of a pipetting insert through the stopper of a sample vessel sealed by the stopper and containing a sample. To ensure complete introduction of the pipetting insert into the stopper, the apparatus is characterized in tha... | 08/31/1993 |
| 5055271 | Pump inserter for test tubes Apparatus for securing pump mechanisms to test tubes sealed by a closure such that the contents of the test tubes may be discharged without removing the closure. The apparatus includes a rack for holding a plurality of pump mechanisms, each of the pump me... | 10/08/1991 |
| 5043141 | Injection systems for sample testing for luminometers An injection system for use with a luminometer, which includes a carrier movable between a liquid loading station and a liquid dispensing station and a dispenser assembly mounted on the carrier and including an injector needle arranged, when at the liquid... | 08/27/1991 |
| 5012845 | Fluid injector An automatic fluid injector, useful for the injection of preselected small, accurately measured quantities of fluid specimens into, e.g., an analytical instrument, particularly a purge and trap analyzer. The injector includes generally a syringe, or syrin... | 05/07/1991 |
| 5007296 | Apparatus for measuring a liquid specimen A particle detector for detecting particles of blood components in an electrolyte employs a minute hole through which a fixed quantity of the material is drawn. Electrodes inside and outside the detector pass an electric current through the minute hole. W... | 04/16/1991 |
| 4967590 | Supercritical fluid chromatography injector and the method for using the same An injector for use with a capillary supercritical fluid chromatography (SFC) apparatus includes an operable four-port switching valve having a body portion and a rotor rotatably mounted within the body portion. The rotor has a hole therethrough which wil... | 11/06/1990 |
| 4896545 | Automatic fluid injector An automated fluid injector which includes, in combination, (A) a syringe, (B) an injector feed assembly for introducing a fluid specimen into the syringe, (C) a magazine for transporting fluid specimens for pick up by the injector feed assembly, and (D) ... | 01/30/1990 |
| 4854181 | Sample injection or extraction head for gaseous or liquid fluids A sample injection or extraction head for gaseous or liquid fluids, especially for use in gas chromatography. An inner bore of the head is in alignment with a passage of an introduction opening for receiving a syringe needle. The introduction opening is c... | 08/08/1989 |
| 4801434 | Dual pipette device A dual pipette device comprises a pair of housings joined rotatably around a vertically extending axis or disposed for lateral movement, a pair of cylinders disposed respectively at lower sections of the housings, a pair of piston members extending vertic... | 01/31/1989 |
