Patents by Inventor Thomas Wachinger

Thomas Wachinger has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200240959
    Abstract: A sample pre-compression valve for liquid chromatography applications is described. The valve enables a sample pre-compression while the solvent pump continues to conduct solvent to the chromatography column. Furthermore, the sample pre-compression valve includes an INJECT position, a LOAD position and a PUMP PURGE position, in which all connecting grooves of the valve are flushed with liquid. A use of the sample pre-compression valve is described as part of a sampler for liquid chromatography applications.
    Type: Application
    Filed: April 17, 2020
    Publication date: July 30, 2020
    Inventor: Thomas Wachinger
  • Patent number: 10722816
    Abstract: The invention relates to a method for setting a gradient delay volume GDV of a liquid chromatography system for a chromatography run in liquid chromatography, in particular a high-performance liquid chromatography system, in which a desired value GDVtarget of a gradient delay volume of the liquid chromatography system is ascertained or predefined and, if the value GDVtarget deviates from a specific fixed value GDVactual of a liquid chromatography system, this value GDVtarget is set in a range 0??GDV=GDVtarget?GDVactual?Vmax of a volume of a volume adjustment device 5. Furthermore, the invention relates to an automatic sampler for carrying out such a method.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: July 28, 2020
    Assignee: Dionex Softron GMBH
    Inventors: Hermann Hochgraeber, Thomas Wachinger
  • Patent number: 10690639
    Abstract: A liquid chromatography system includes a separation column, a trap column, and a first switching valve. The first switching valve is adapted to assume a first switching position for bringing a sample into the trap column in a first flow direction. The switching valve is also adapted to assume a second switching position for fluidly connecting the trap column with the separation column and providing a flow from the trap column to the separation column in a second flow direction. The second flow direction is opposite to the first flow direction. The first switching valve is adapted to assume a third switching position for fluidly connecting the trap column, with the separation column and providing a flow from the trap column to the separation column in the first flow direction.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: June 23, 2020
    Assignee: Dionex Softron GMBH
    Inventors: Thomas Wachinger, Christoph Hollnagel
  • Publication number: 20200166483
    Abstract: A sampler for liquid chromatography is described. The sampler includes an injection valve and a sample loop. The injection valve includes one waste port, two sample loop ports, and two high-pressure ports. The sample loop port includes a first loop part and a second loop part. The injection valve can be configured to have LOAD position and INJECT position. The injection valve can also be configured to have one or more additional positions such as a FULL PURGE position, a PUMP PURGE position, and a NEGATIVE PRESSURE position.
    Type: Application
    Filed: October 25, 2019
    Publication date: May 28, 2020
    Inventor: Thomas WACHINGER
  • Patent number: 10634652
    Abstract: A sample pre-compression valve for liquid chromatography applications is described. The valve enables a sample pre-compression while the solvent pump continues to conduct solvent to the chromatography column. Furthermore, the sample pre-compression valve includes an INJECT position, a LOAD position and a PUMP PURGE position, in which all connecting grooves of the valve are flushed with liquid. A use of the sample pre-compression valve is described as part of a sampler for liquid chromatography applications.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: April 28, 2020
    Assignee: Dionex Softron GmbH
    Inventor: Thomas Wachinger
  • Patent number: 10473631
    Abstract: A sampler for liquid chromatography is described. The sampler includes an injection valve and a sample loop. The injection valve includes one waste port, two sample loop ports, and two high-pressure ports. The sample loop port includes a first loop part and a second loop part. The injection valve can be configured to have LOAD position and INJECT position. The injection valve can also be configured to have one or more additional positions such as a FULL PURGE position, a PUMP PURGE position, and a NEGATIVE PRESSURE position.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: November 12, 2019
    Assignee: Dionex Softron GMBH
    Inventor: Thomas Wachinger
  • Publication number: 20180306758
    Abstract: A sample pre-compression valve for liquid chromatography applications is described. The valve enables a sample pre-compression while the solvent pump continues to conduct solvent to the chromatography column. Furthermore, the sample pre-compression valve includes an INJECT position, a LOAD position and a PUMP PURGE position, in which all connecting grooves of the valve are flushed with liquid. A use of the sample pre-compression valve is described as part of a sampler for liquid chromatography applications.
    Type: Application
    Filed: April 23, 2018
    Publication date: October 25, 2018
    Inventor: Thomas WACHINGER
  • Publication number: 20180272250
    Abstract: The invention relates to a method for setting a gradient delay volume GDV of a liquid chromatography system for a chromatography run in liquid chromatography, in particular a high-performance liquid chromatography system, in which a desired value GDVtarget of a gradient delay volume of the liquid chromatography system is ascertained or predefined and, if the value GDVtarget deviates from a specific fixed value GDVactual of a liquid chromatography system, this value GDVtarget is set in a range 0??GDV=GDVtarget?GDVactual?Vmax of a volume of a volume adjustment device 5. Furthermore, the invention relates to an automatic sampler for carrying out such a method.
    Type: Application
    Filed: May 29, 2018
    Publication date: September 27, 2018
    Inventors: Hermann HOCHGRAEBER, Thomas WACHINGER
  • Patent number: 10005006
    Abstract: The invention relates to a method for setting a gradient delay volume GDV of a liquid chromatography system for a chromatography run in liquid chromatography, in particular a high-performance liquid chromatography system, in which a desired value GDVtarget of a gradient delay volume of the liquid chromatography system is ascertained or predefined and, if the value GDVtarget deviates from a specific fixed value GDVactual of a liquid chromatography system, this value GDVtarget is set in a range 0??GDV=GDVtarget?GDVactual?Vmax of a volume of a volume adjustment device 5. Furthermore, the invention relates to an automatic sampler for carrying out such a method.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: June 26, 2018
    Assignee: DIONEX SOFTRON GMBH
    Inventors: Hermann Hochgraeber, Thomas Wachinger
  • Publication number: 20180128792
    Abstract: A liquid chromatography system includes a separation column, a trap column, and a first switching valve. The first switching valve is adapted to assume a first switching position for bringing a sample into the trap column in a first flow direction. The switching valve is also adapted to assume a second switching position for fluidly connecting the trap column with the separation column and providing a flow from the trap column to the separation column in a second flow direction. The second flow direction is opposite to the first flow direction. The first switching valve is adapted to assume a third switching position for fluidly connecting the trap column, with the separation column and providing a flow from the trap column to the separation column in the first flow direction.
    Type: Application
    Filed: November 10, 2017
    Publication date: May 10, 2018
    Inventors: Thomas WACHINGER, Christoph HOLLNAGEL
  • Publication number: 20180128788
    Abstract: A system for component interconnection for use in liquid chromatography includes a first switching valve and a second switching valve. A first connecting line fluidly connects the first switching valve to the second switching valve. A second connecting line fluidly connects the first switching valve to the second switching valve. A metering device is located in the first connecting line.
    Type: Application
    Filed: November 10, 2017
    Publication date: May 10, 2018
    Inventors: Thomas WACHINGER, Christoph HOLLNAGEL
  • Publication number: 20180128787
    Abstract: A method of introducing a sample into a separation column includes introducing the sample into a trap column, isolating the trap column from ambient atmosphere and pressurizing the trap column to a first pressure while the trap column is isolated from ambient atmosphere, providing a fluid connection between the trap column and the separation column after pressurizing the trap column to the first pressure, supplying the sample from the trap column to the separation column.
    Type: Application
    Filed: November 10, 2017
    Publication date: May 10, 2018
    Inventors: Christoph HOLLNAGEL, Hermann Hochgraeber, Thomas Wachinger
  • Patent number: 9964527
    Abstract: A sample pre-compression valve for liquid chromatography applications is described. The valve enables a sample pre-compression while the solvent pump continues to conduct solvent to the chromatography column. Furthermore, the sample pre-compression valve includes an INJECT position, a LOAD position and a PUMP PURGE position, in which all connecting grooves of the valve are flushed with liquid. A use of the sample pre-compression valve is described as part of a sampler for liquid chromatography applications.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: May 8, 2018
    Assignee: Dionex Softron GmbH
    Inventor: Thomas Wachinger
  • Publication number: 20170219539
    Abstract: A sample pre-compression valve for liquid chromatography applications is described. The valve enables a sample pre-compression while the solvent pump continues to conduct solvent to the chromatography column. Furthermore, the sample pre-compression valve includes an INJECT position, a LOAD position and a PUMP PURGE position, in which all connecting grooves of the valve are flushed with liquid. A use of the sample pre-compression valve is described as part of a sampler for liquid chromatography applications.
    Type: Application
    Filed: June 23, 2016
    Publication date: August 3, 2017
    Inventor: Thomas WACHINGER
  • Publication number: 20170122918
    Abstract: A plug for connecting capillaries includes at least one capillary tube, at least one sealing, and at least one pressure piece. The capillary tube includes a first inner diameter and an open end section. The sealing includes a second inner diameter, a first end section and a shape adapted to seal the open end section of the capillary tube when connected. The pressure piece is adapted to exert at least axial pressure and/or force to at least a part of the sealing. The pressure piece is also adapted to host the first end section of the sealing in abutment with the open end section of the capillary tube so that the capillary tube and the sealing are aligned.
    Type: Application
    Filed: October 28, 2016
    Publication date: May 4, 2017
    Inventors: Thomas WACHINGER, Daniel BUERGER
  • Publication number: 20170038352
    Abstract: A process for transferring a method from a starting system to a target system in liquid chromatography, in particular in high performance liquid chromatography, is described. A first chromatogram of the method carried out on the starting system is available or determined. The method developed for the starting system is carried out on the target system without any change in its physical parameters, and a second chromatogram is thereby determined. The two chromatograms of the starting system and the target system are compared, and measures for adjusting the physical system parameters of the target system are derived from the deviations.
    Type: Application
    Filed: August 5, 2016
    Publication date: February 9, 2017
    Inventors: Holger FRANZ, Thomas WACHINGER, Christian SCHMIDT
  • Publication number: 20160377580
    Abstract: A sampler for liquid chromatography is described. The sampler includes an injection valve and a sample loop. The injection valve includes one waste port, two sample loop ports, and two high-pressure ports. The sample loop port includes a first loop part and a second loop part. The injection valve can be configured to have LOAD position and INJECT position. The injection valve can also be configured to have one or more additional positions such as a FULL PURGE position, a PUMP PURGE position, and a NEGATIVE PRESSURE position.
    Type: Application
    Filed: June 23, 2016
    Publication date: December 29, 2016
    Inventor: Thomas WACHINGER
  • Patent number: 9364130
    Abstract: A dishwasher, in particular a household dishwasher, includes at least one wash compartment and a rack guide rail for support in the wash compartment of a rack which holds items to be washed and/or dried. The rack guide rail has a running surface to allow movement of the rack in and out of the wash compartment for loading and unloading purposes along a travel path supported on the running surface. The rack guide rail is hereby supported at a support point for pivoting about a pivot axis.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: June 14, 2016
    Assignee: BSH Hausgeräte GmbH
    Inventors: Johann Jobst, Thomas Wachinger
  • Publication number: 20150265944
    Abstract: The invention relates to a method for setting a gradient delay volume GDV of a liquid chromatography system for a chromatography run in liquid chromatography, in particular a high-performance liquid chromatography system, in which a desired value GDVtarget of a gradient delay volume of the liquid chromatography system is ascertained or predefined and, if the value GDVtarget deviates from a specific fixed value GDVactual of a liquid chromatography system, this value GDVtarget is set in a range 0??GDV=GDVtarget?GDVactual?Vmax of a volume of a volume adjustment device 5. Furthermore, the invention relates to an automatic sampler for carrying out such a method.
    Type: Application
    Filed: March 18, 2015
    Publication date: September 24, 2015
    Inventors: Hermann HOCHGRAEBER, Thomas WACHINGER
  • Patent number: 9138123
    Abstract: A dishwasher comprising liquid lines that guide washing liquor towards spray devices arranged inside a washing receptacle. In an exemplary embodiment, the dishwasher includes a switch-over element, upon actuation of which, the washing liquor may be guided to a first liquid line leading to a first spray device, and/or to a second liquid line leading to a second spray device. The dishwasher may include at least one supplementary filter associated with the switch-over element.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: September 22, 2015
    Assignee: BSH Hausgeraete GmbH
    Inventors: Egbert Classen, Helmut Jerg, Hans-Peter Nannt, Kai Paintner, Thomas Wachinger