Patents by Inventor Uwe Kühn
Uwe Kühn 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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Patent number: 10709862Abstract: A device 10 withdraws a breathing gas stream (A) from a ventilation system (B) and transports the breathing gas stream (A) to a gas analysis system (G). The device 10 has a tubular configuration with an inner side (41) and with an outer side (42) and includes two tube sections (11, 11?) and a drying stage (12, 14, 22) with an inner side (43, 43?) and with an outer side (44, 44?), and at least one liquid storage device (13, 21). The drying stage (12, 14, 22) includes a gas-tight and moisture-permeable material that transports moisture from the inner side (43, 43?) of the drying stage (12, 14, 22) through the gas-tight and moisture-permeable material to the outer side (42) of the tubular device (10). The drying stage (12, 14, 22) and/or the liquid storage device (13, 21) is arranged at least partially between the two tube sections (11, 11?).Type: GrantFiled: October 5, 2015Date of Patent: July 14, 2020Assignee: Drägerwerk AG & Co. KGaAInventors: Hans-Ullrich Hansmann, Andreas Hengstenberg, Uwe Kühn, Gerd Peter, Michael Riecke
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Publication number: 20170326326Abstract: A device 10 withdraws a breathing gas stream (A) from a ventilation system (B) and transports the breathing gas stream (A) to a gas analysis system (G). The device 10 has a tubular configuration with an inner side (41) and with an outer side (42) and includes two tube sections (11, 11?) and a drying stage (12, 14, 22) with an inner side (43, 43?) and with an outer side (44, 44?), and at least one liquid storage device (13, 21). The drying stage (12, 14, 22) includes a gas-tight and moisture-permeable material that transports moisture from the inner side (43, 43?) of the drying stage (12, 14, 22) through the gas-tight and moisture-permeable material to the outer side (42) of the tubular device (10). The drying stage (12, 14, 22) and/or the liquid storage device (13, 21) is arranged at least partially between the two tube sections (11, 11?).Type: ApplicationFiled: October 5, 2015Publication date: November 16, 2017Inventors: Hans-Ullrich HANSMANN, Andreas HENGSTENBERG, Uwe KÜHN, Gerd PETER, Michael RIECKE
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Patent number: 8696588Abstract: A device (1) and a corresponding method are provided for determining and/or monitoring the respiration rate based on measurement with more than one sensor (5, 7, 9, 13, 15). The device may be part of a monitor for determining and/or monitoring the respiration rate. The second and/or additional sensors are different form the first sensor and have a different manor of operation from the first sensor.Type: GrantFiled: October 24, 2007Date of Patent: April 15, 2014Assignee: Dräger Medical GmbHInventors: Hans-Ullrich Hansmann, Tilman von Blumenthal, Peter Tschuncky, Andreas Hengstenberg, Frank Mett, Uwe Kühn, Frank Franz, Kai Kück, Steffen Schmitt
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Patent number: 8496795Abstract: An electrochemical gas sensor with a plurality of electrodes is provided with an electrolyte, with a gas-permeable membrane (1), with a gas-permeable and conductive carrier layer (2) applied to the membrane (1) and with at least one measuring electrode (3) applied to the carrier layer (2). The measuring electrode (3) is of a punctiform design and the electrochemical potential difference of the reaction between the carrier layer (2) and the measuring electrode (3) is at least 20 mV, can be manufactured in a compact form and makes possible an especially low power consumption for measured gases in the percentage range.Type: GrantFiled: August 22, 2007Date of Patent: July 30, 2013Assignee: Dräger Safety AG & Co. KGaAInventor: Uwe Kühn
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Patent number: 7727369Abstract: A gas sensor is provided that has the diffusion of the measuring gas toward the working electrode adapted in such a way as to obtain a good signal-to-basic current ratio. Provisions are made for the measuring gas to be transported via a capillary arrangement (11), wherein the capillary arrangement (11) is designed as an arrangement extending in parallel to the working electrode (4).Type: GrantFiled: April 5, 2006Date of Patent: June 1, 2010Assignee: Dräger Safety AG & Co. KGaAInventor: Uwe Kühn
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Patent number: 7704356Abstract: A compact gas sensor array, to which a test gas can be admitted without the use of mechanical components and whose readiness for measurement is interrupted during the calibration only briefly. The array includes a combination of an electrochemical gas sensor (3) and an electrochemical gas generator (2). A gas channel (1) is provided from the gas generator (2) to the measuring electrode (9) of the gas sensor (3). The measuring gas from the environment of the gas sensor (3) has free access to the measuring electrode (9).Type: GrantFiled: April 24, 2006Date of Patent: April 27, 2010Assignee: Dräger Safety AG & Co. KGaAInventor: Uwe Kühn
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Patent number: 7645367Abstract: A gas-measuring system contains at least one gas sensor (1) and at least one gas generator (4). The gas sensor (1) has at least one measuring surface (3), at which a target gas concentration can be measured. The gas generator (4) has at least one discharge surface (5), from which a current-proportional quantity of test gas can be discharged. The measuring surface (3) and the discharge surface (5) are designed and the gas sensor (1) and the gas generator (4) can be arranged such that the measuring surface (3) and the discharge surface (5) are in direct contact with the ambient atmosphere and the distance between the two surfaces is shorter than the extension of the smaller of the two surfaces.Type: GrantFiled: February 7, 2006Date of Patent: January 12, 2010Assignee: Dräger Safety AG & Co. KGaAInventors: Peter Tschuncky, Herbert Kiesele, Uwe Kühn, Frank Mett, Andreas Hengstenberg, Kerstin Caro
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Publication number: 20060278527Abstract: A gas sensor is provided that has the diffusion of the measuring gas toward the working electrode adapted in such a way as to obtain a good signal-to-basic current ratio. Provisions are made for the measuring gas to be transported via a capillary arrangement (11), wherein the capillary arrangement (11) is designed as an arrangement extending in parallel to the working electrode (4).Type: ApplicationFiled: April 5, 2006Publication date: December 14, 2006Applicant: Drager Safety AG & Co. KGaAInventor: Uwe Kühn
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Patent number: 6793786Abstract: An adapter (1) and electrochemical gas sensor (2) is provided with an electrochemical gas sensor housing (14) accommodating an electrolyte (13), with at least one measuring electrode (12) arranged therein and with a membrane (11), which screens the measuring electrode (12) from a measured gas and is permeable to the measured gas. The measuring sensitivity of an electrochemical gas sensor is increased by the adapter (1) having a gas-impermeable surface (15) extending in parallel to and at a spaced location from the membrane (11). The adapter (1) and the membrane (11) form a flow gap (10) for the measured gas delivered by a pump. The adapter (1) may be plugged onto the electrochemical sensor (2) at its outer edge (1a). The measured gas enters through a central opening (17), expands in the flow gap (10) radially to the outside and leaves same via the ring-shaped gap (16).Type: GrantFiled: March 28, 2002Date of Patent: September 21, 2004Assignee: Drägerwerk AktiengesellschaftInventors: Herbert Kiesele, Uwe Kühn, Rainer Kunz, Frank Mett
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Patent number: 6317053Abstract: A switch cabinet is provided for protection of servers and other highly sensitive computer devices or miscellaneous equipment. The cabinet is configured as a protection cabinet with an interior isolated from the atmosphere. The interior is continuously provided with fresh air by a ventilator. Fresh air is controlled by early detection fire sensors shortly before passing through the ventilator. When fire breaks out, the early detection fire sensors activate gas bottles filled with the noble gas argon, so that argon can be introduced into the interior to extinguish the fire once fresh air supply has been stopped, thereby ensuring early and fast extinguishing of the blaze.Type: GrantFiled: September 10, 1999Date of Patent: November 13, 2001Inventors: Hans-Dieter Seeliger, Uwe Kühn
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Patent number: 4894138Abstract: An electrochemical gaseous measurement cell includes a housing with an anode and a cathode arranged in spaced locations in an acid electrolyte for galvanic measurement of gases which comprises an aqueous solution of an organic acid containing a polyfunctional groups suitable to yield protons during the measurement. The container, or housing, also has a membrane at an opening thereof which is permeable to oxygen.Type: GrantFiled: August 22, 1988Date of Patent: January 16, 1990Assignee: Dragerwerk AGInventors: Rudolf Gambert, Uwe Kuehn