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| Number | Title | Issue Date |
| 8087310 | Interconnect for MEMS device including a viscoelastic septum Provided is a micro electro mechanical systems (MEMS) device for use with an elongate structure. The MEMS device includes a generally planar substrate, a device wall layer formed upon the substrate, a septum cavity formed in the device wall layer, a channel formed i... | 01/03/2012 |
| 7647847 | Liquid sample suctioning device and analyzer The present invention provides a liquid sample suctioning device capable of simplifying a structure thereof, preventing clogging of a pipette and contamination of a liquid sample, and closing a hole formed in a lid after the liquid sample is suctioned. The liquid sa... | 01/19/2010 |
| 7316730 | Inlet double-seal assembly An inlet seal assembly for sealing an injection port member in a chromatography instrument , comprising an injection port member having a raised metal ring, an inlet seal member with an upper surface, a peripheral groove formed in the inlet seal member upper surface... | 01/08/2008 |
| 7270020 | Instrument assemblies and analysis methods The disclosure relates to instrument assemblies that can include a sample introduction port coupled to a chamber configured to receive the sample from the sample introduction port and provide analysis of the sample with a valve between the sample introduction port a... | 09/18/2007 |
| 7247498 | Device to alternately supply a fluid to an analyzer Apparatus and methods for supplying a portion of a fluid stream and, alternately, a fluid of known composition and concentration to an analyzer are provided. The fluid stream is directed through a series of connected chambers formed in an integral housing. A samplin... | 07/24/2007 |
| 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 |
| 7175812 | Automatic sampler and needle for the same The surface of a needle for collecting samples is coated with a coating material lower in chemical activity than a base metal of the needle. More specifically, the surface of the needle may be coated with a layer of gold or platinum. Alternatively, the surface of th... | 02/13/2007 |
| 7105043 | Sealing mechanism for gas chromatograph machines A sealing mechanism for a gas chromatograph machine includes a weldment attachment mountable at the weldment assembly of the machine. The attachment has a passage therethrough for gas communicated to the weldment assembly. An actuator imparts a direct force on the w... | 09/12/2006 |
| 7001774 | Sample collection and processing device A volume-adjusting insert for sample vessels comprises an elongated body with a septum seal on one end and a seal surface on the outside of the body. A through-chamber in the body provides a receiving chamber for a hypodermic needle inserted into the septum. The sea... | 02/21/2006 |
| 6712161 | Tool and method for soil sampling A containment cartridge for extracting and preserving a soil sample comprises a cylindrical sampling barrel for insertion into the soil for collecting a soil sample. ... | 03/30/2004 |
| 5992214 | Method and device for analyzing volatile substances in gases The invention concerns a method and device for the automatic analysis of volatile substances in gases, in particular volatile substances in air, the method comprising the following successive steps: a) the gas to be analyzed is passed through an absortion... | 11/30/1999 |
| 5792423 | Headspace autosampler apparatus and method A headspace autosampling apparatus (92) for generating and delivering gaseous samples to a gas chromatograph or other instrument includes a plurality of vials (98) in a carousel (150). The vials are delivered one at a time from the carousel through a vial... | 08/11/1998 |
| 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 |
| 5750906 | Multifunction valve The invention features a sample probe and reagent selector valve that enables selection among multiple functions of withdrawing a biological sample from a syringe or capillary into a fluid parameter sensor module, providing calibration and quality control... | 05/12/1998 |
| 5683658 | Reagent bottle A reagent bottle suitable for insertion into a sample analyzer features a sample discharge opening plugged by an elastic, pierceable stopper, and an air inlet. Both the sample discharge opening and the air inlet are located on the same side of the reagent... | 11/04/1997 |
| 5433120 | Sampling system for septum closed container This invention relates to a sampling system for collecting a sample in a septum closed container. It provides for a reservoir of a predetermined volume which captures a sample and it further provides for routing of the captured sample from the reservoir t... | 07/18/1995 |
| 5417123 | Automatic filtering and identification of samples The present invention provides an XYZ type laboratory robot to be used with various peripherals suitable for analyzing and/or preparing samples of liquid. The robot has a work surface (1) including a moving system (2) for supporting elements (7) required ... | 05/23/1995 |
| 5340543 | Modular gas chromatography device A chromatography device for separating sample fluids from carrier fluids and analyzing the sample is configured so that it is a modular unit. This modularity enables repairs to be quickly effected on the unit and also greatly simplifies the task of access... | 08/23/1994 |
| 5339701 | Needle interface apparatus A needle interface apparatus for maintaining a stable connection between a first instrument and a second instrument, such as an auto-sampler unit and a gas chromatograph. A needle interface apparatus is comprised of a modified septum nut on the second ins... | 08/23/1994 |
| 5279337 | Process and installation for transferring out of a tight enclosure a fluid contained in a sealed container A process and apparatus for the transfer out of a tight enclosure of a fluid solution contained in a polluted container (R1). The transfer is accomplished without removing the polluted container from the enclosure and without breaking the seal of the poll... | 01/18/1994 |
| 5271903 | Supercritical fluid extraction restrictor and collection system An apparatus for receiving chemical compounds carried in a high pressure effluent fluid stream from supercritical fluid extraction. The apparatus includes a heated conduit connected to supercritical fluid extraction device through which an effluent stream... | 12/21/1993 |
| 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 |
| 5171538 | Reagent supply system for a medical analytical instrument A reagent supply system for a medical anlytical instrument includes a reagent space provided on the instrument and reagent vessels which are received in the reagent space. In the reagent space there is provided at least one reagent vessel compartment with... | 12/15/1992 |
| 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 |
| 4972729 | Device for split and splitless sampling onto capillary columns using a syringe An apparatus for conducting split sampling gas chromatography of a liquid sample comprising a vaporization chamber to receive a needle of a syringe, a first tube to receive the needle, a second tube directly adjacent the first tube and running substantially al... | 11/27/1990 |
| 4938929 | Stopper penetration and pipette system A stopper penetration and pipette apparatus is provided for punching holes and placing sleeves in the stoppers of medical vials in combination with a pipette system designed for use in connection with sleeves placed in the stoppers. A base is provided wit... | 07/03/1990 |
| 4927605 | Specimen collection and sampling container The invention provides a specimen collection and sampling device, particularly useful for urine samples, for collecting a liquid sample and segregating an aliquot of the sample away from contact with the remaining portion of the sample. This segregation i... | 05/22/1990 |
| 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 |
| 4895032 | Process and device for split and splitless sampling onto capillary columns using the syringe In the split sampling gas chromatographic process for analyzing a sample by introducing the needle of a syringe into the vaporization chamber of a gas chromatographic column, discharging a liquid sample from the syringe needle into the vaporization chambe... | 01/23/1990 |
| 4815325 | Capillary fluid injectors A capillary fluid injector, particularly an automated capillary fluid injector, for dispensing very small accurately measured quantities of a fluid into a medium. A capillary opening of adjustable volume is located on the dispensing end of the fluid injec... | 03/28/1989 |
| 4713974 | Autosampler An improved microprocessor-controlled autosampler for use in liquid chromatography is shown. The autosampler is fully programmable by the operator and capable of performing complex sample preparation routines. A spring-loaded sample needle is employed to ... | 12/22/1987 |
| 4621534 | Automatic sample apparatus, valve and sampling method The present invention relates to an automatic sampling apparatus for sample injection into a gas chromatographic column. In order to allow automatic injection with a non-vaporizing direct on-column injector, the apparatus includes a switch valve, an on-co... | 11/11/1986 |
| 4615226 | Apparatus and method for introducing solutes into a stream of carrier gas of a chromatograph A precise volume of sample liquid is injected by inserting a syringe into the vaporizing chamber of the injection assembly for a gas chromatograph by performing the entire injection including withdrawal of the syringe in such a short time that essentially... | 10/07/1986 |
| 4517851 | System for controlling septum damage The present invention is directed to a system for locating a vial in a predetermined location with respect to a needle which is used to penetrate a septum in the vial. The system includes a vial carrier having a well for receiving a vial. A penetrable sep... | 05/21/1985 |
| 4476733 | Sampler for feeding samples in gas chromatography A plurality of samples subject to the same thermostatting time periods are directed one by one to the inlet section of a gas chromatograph for analysis in accordance with the head space method. To this end, a first heatable sample store adapted to be step... | 10/16/1984 |
| 4456823 | Mixed gamma emitting gas standard and method A mixed gamma emitting gas standard in the form of a multiple isotope standard in a glass sphere which can be used to calibrate a gamma spectrometer system for gas counting in a wide energy range and without the need for any additional standards. Total an... | 06/26/1984 |
| 4402911 | Apparatus and method for storing gas samples A vial for the storage of soil gas samples comprises a chamber having a passage extending away therefrom which serially defines a generally annular shoulder and a generally frustoconical surface each facing away from the chamber. A resiliently pierceable ... | 09/06/1983 |
| 4374089 | Chromatographic accessory incorporating injection switch assembly A nut assembly for use on an injection switch for a chromatograph has a nut surrounded by a moveable member which is disposed to travel co-linearly with respect to the axis of the nut. The moveable member is biased so that its upper end extends above the ... | 02/15/1983 |
| 4344917 | Sample inlet for analysis instrument and method of sample analysis A sample injection system for a gas chromatograph or other analysis instrument is described. The sample injection system can be used in conventional gas chromatographs containing a detecting device and an internal heat source to provide temperature-progra... | 08/17/1982 |
