Patents by Inventor Detlef Günther
Detlef Günther 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).
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Publication number: 20220181135Abstract: An ICP source (100) for generating ions using an inductively coupled plasma is configured to be coupled to a mass spectrometer (200). The sample is introduced into the plasma along a downwards-pointing vertical direction (G) under the action of gravity. In this manner, the sample can reach the plasma regardless of its condition, e.g., regardless of droplet or particle size. Transport efficiencies of up to 100% can be achieved. The ICP source can be supplied with a continuous stream comprising the sample.Type: ApplicationFiled: March 16, 2020Publication date: June 9, 2022Applicant: ETH ZurichInventors: Bodo HATTENDORF, Detlef GÜNTHER, Thomas VONDERACH
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Patent number: 10804090Abstract: A laser ablation cell (1) comprises a flow channel (11) having an essentially constant cross-sectional area so as to ensure a strictly laminar flow in the flow channel. A sample chamber (21) is provided adjacent to a lateral opening (14) of the flow channel. A laser beam (41) enters the sample chamber (21) through a lateral window (16) and impinges on a surface (24) of a sample (23) to ablate material from the sample. The sample may be positioned in such a distance from the flow channel that the laser-generated aerosol mass distribution has its center within the flow channel. This leads to short aerosol washout times. The laser ablation cell is particularly well suited for aerosol generation in inductively coupled plasma mass spectrometry (ICPMS), including imaging applications.Type: GrantFiled: April 25, 2019Date of Patent: October 13, 2020Assignees: ETH ZÜRICH, PAUL SCHERRER INSTITUTInventors: Detlef Günther, Daniel Grolimund, Hao Wang
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Publication number: 20190355564Abstract: A laser ablation cell (1) comprises a flow channel (11) having an essentially constant cross-sectional area so as to ensure a strictly laminar flow in the flow channel. A sample chamber (21) is provided adjacent to a lateral opening (14) of the flow channel. A laser beam (41) enters the sample chamber (21) through a lateral window (16) and impinges on a surface (24) of a sample (23) to ablate material from the sample. The sample may be positioned in such a distance from the flow channel that the laser-generated aerosol mass distribution has its center within the flow channel. This leads to short aerosol washout times. The laser ablation cell is particularly well suited for aerosol generation in inductively coupled plasma mass spectrometry (ICPMS), including imaging applications.Type: ApplicationFiled: April 25, 2019Publication date: November 21, 2019Inventors: Detlef Günther, Daniel Grolimund, Hao Wang
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Patent number: 10319576Abstract: A laser ablation cell (1) comprises a flow channel (11) having an essentially constant cross-sectional area so as to ensure a strictly laminar flow in the flow channel. A sample chamber (21) is provided adjacent to a lateral opening (14) of the flow channel. A laser beam (41) enters the sample chamber (21) through a lateral window (16) and impinges on a surface (24) of a sample (23) to ablate material from the sample. The sample may be positioned in such a distance from the flow channel that the laser-generated aerosol mass distribution has its center within the flow channel. This leads to short aerosol washout times. The laser ablation cell is particularly well suited for aerosol generation in inductively coupled plasma mass spectrometry (ICPMS), including imaging applications.Type: GrantFiled: October 27, 2016Date of Patent: June 11, 2019Assignees: ETH ZÜRICH, PAUL SCHERRER INSTITUTInventors: Detlef Günther, Daniel Grolimund, Hao Wang
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Patent number: 9496124Abstract: A laser ablation cell (1) comprises a flow channel (11) having an essentially constant cross-sectional area so as to ensure a strictly laminar flow in the flow channel. A sample chamber (21) is provided adjacent to a lateral opening (14) of the flow channel. A laser beam (41) enters the sample chamber (21) through a lateral window (16) and impinges on a surface (24) of a sample (23) to ablate material from the sample. The sample may be positioned in such a distance from the flow channel that the laser-generated aerosol mass distribution has its center within the flow channel. This leads to short aerosol washout times. The laser ablation cell is particularly well suited for aerosol generation in inductively coupled plasma mass spectrometry (ICPMS), including imaging applications.Type: GrantFiled: March 24, 2014Date of Patent: November 15, 2016Assignees: ETH ZURICH, PAUL SCHERRER INSTITUTInventors: Detlef Günther, Daniel Grolimund, Hao Wang
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Publication number: 20140287953Abstract: A laser ablation cell (1) comprises a flow channel (11) having an essentially constant cross-sectional area so as to ensure a strictly laminar flow in the flow channel. A sample chamber (21) is provided adjacent to a lateral opening (14) of the flow channel. A laser beam (41) enters the sample chamber (21) through a lateral window (16) and impinges on a surface (24) of a sample (23) to ablate material from the sample. The sample may be positioned in such a distance from the flow channel that the laser-generated aerosol mass distribution has its center within the flow channel. This leads to short aerosol washout times. The laser ablation cell is particularly well suited for aerosol generation in inductively coupled plasma mass spectrometry (ICPMS), including imaging applications.Type: ApplicationFiled: March 24, 2014Publication date: September 25, 2014Inventors: Detlef Günther, Daniel Grolimund, Hao Wang
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Publication number: 20130207000Abstract: A laser-ablation ion source for generating a low energy ion beam having low longitudinal and transverse emittance, including a supersonic nozzle, followed by an RF ion funnel. A laser source generates a laser beam which is focused by a lens to an ablation site. The ablation site is located upstream of the nozzle, at a distance of less than 10 mm from the nozzle aperture. The laser irradiates the ablation site through the nozzle aperture to generate the ions.Type: ApplicationFiled: July 1, 2011Publication date: August 15, 2013Applicant: ETH ZURICHInventors: Detlef Günther, Bodo Hattendordf, Rolf Dietiker, Tatiana Egorova, Victor Varentsov
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Patent number: 8408961Abstract: A method for producing a molybdenum film for lamp construction is provided. The method may include roughening at least a part of the surface of the molybdenum film by sandblasting with a sandblasting means, wherein the sandblasting means contains at least one of aluminum oxide and quartz sand as well as at least one further component.Type: GrantFiled: April 24, 2008Date of Patent: April 2, 2013Assignee: OSRAM Gesellschaft mit beschraenkter HaftungInventors: Jürgen Becker, Detlef Günther, Andreas Naujoks, Andreas Ponnier, Lothar Vollmer
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Publication number: 20110165479Abstract: A fuel cell system includes a fuel cell stack that receives a cathode feed gas and has an exhaust stream and a heat transfer stream flowing therefrom. A charge-air heat exchanger enables heat transfer between the heat transfer stream and the cathode feed gas. The charge-air heat exchanger also enables heat transfer between the heat transfer stream and the cathode feed gas to compensate for the adiabatic cooling effect. Furthermore, the charge-air heat exchanger vaporizes the liquid water to provide water vapor. The water vapor humidifies the cathode feed gas.Type: ApplicationFiled: March 17, 2011Publication date: July 7, 2011Applicant: GM Global Technology Operations LLCInventor: Detlef Günther
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Publication number: 20100127610Abstract: A method for producing a molybdenum film for lamp construction is provided. The method may include roughening at least a part of the surface of the molybdenum film by sandblasting with a sandblasting means, wherein the sandblasting means contains at least one of aluminum oxide and quartz sand as well as at least one further component.Type: ApplicationFiled: April 24, 2008Publication date: May 27, 2010Applicant: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNGInventors: Detlef Guenther, Lothar Vollmer, Andreas Ponnier, Andreas Naujoks, Juergen Becker
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Patent number: 7718297Abstract: A product comprising a fuel cell stack comprising a cathode outlet, a first conduit connected to the cathode outlet and to a first housing, a water-retaining material provided in said first housing, a bypass conduit connected to the cathode outlet of the fuel cell system, and a first valve for opening and closing at least one of said first conduit and said bypass conduit.Type: GrantFiled: November 8, 2006Date of Patent: May 18, 2010Assignee: GM Global Technology Operations, Inc.Inventors: Reiner Wilpsbaeumer, Detlef Guenther, Remy Fontaine, Dirk Wexel
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Patent number: 7651799Abstract: A system and method for improving air humidification for fuel cell applications includes a fuel cell stack having a cathode inlet and a cathode outlet. The cathode inlet receives an oxidant. A humidifier humidifies the oxidant prior to delivery of the oxidant to the cathode inlet. An injection nozzle is provided, and a volume of water substantially vaporized by the injection nozzle reduces a temperature of the oxidant and increases a water transfer rate of the humidifier. The injection nozzle can be positioned either directly upstream of the humidifier in the oxidant inlet line or in a stack cathode outlet line which is directed into the humidifier.Type: GrantFiled: December 20, 2004Date of Patent: January 26, 2010Inventors: Detlef Günther, Christian König, John Ruhl
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Publication number: 20080107929Abstract: A product comprising a fuel cell stack comprising a cathode outlet, a first conduit connected to the cathode outlet and to a first housing, a water-retaining material provided in said first housing, a bypass conduit connected to the cathode outlet of the fuel cell system, and a first valve for opening and closing at least one of said first conduit and said bypass conduit.Type: ApplicationFiled: November 8, 2006Publication date: May 8, 2008Applicant: GM Global Tehnology Operations, Inc.Inventors: Reiner Wilpsbaeumer, Detlef Guenther, Remy Fontaine, Dirk Wexel