Patents by Inventor Mladen Schlichte
Mladen Schlichte 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: 11733193Abstract: A heat tone sensor includes a housing with a gas inlet and with a gas outlet as well as a device for generating a gas stream of a gas to be tested between the gas inlet and the gas outlet. A measuring element, around and/or through which the gas stream flows, is configured to catalytically burn at least a portion of the gas stream and to send a measurement signal. The measurement signal indicates a quantity of heat released in the process.Type: GrantFiled: December 12, 2018Date of Patent: August 22, 2023Assignee: Dräger Safety AG & Co. KGaAInventors: Mladen Schlichte, Peter Tschuncky, Jürgen Osswald, Sebastian Schröter, Tim Gnoerrlich, Martin Schrader
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Publication number: 20200278332Abstract: The invention relates to a method for testing a gas sensor by exposure to a test gas by a test device. The invention also relates to a test device for testing a gas sensor by applying a test gas. The invention also relates to a system comprising a gas sensor and a test device for testing the gas sensor by applying a test gas.Type: ApplicationFiled: October 5, 2018Publication date: September 3, 2020Applicant: DRÄGER SAFETY AG & CO. KGAAInventors: Mladen SCHLICHTE, Rigobert CHRZAN, Peter TSCHUNCKY
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Publication number: 20190178827Abstract: A heat tone sensor includes a housing with a gas inlet and with a gas outlet as well as a device for generating a gas stream of a gas to be tested between the gas inlet and the gas outlet. A measuring element, around and/or through which the gas stream flows, is configured to catalytically burn at least a portion of the gas stream and to send a measurement signal. The measurement signal indicates a quantity of heat released in the process.Type: ApplicationFiled: December 12, 2018Publication date: June 13, 2019Inventors: Mladen SCHLICHTE, Peter TSCHUNCKY, Jürgen OSSWALD, Sebastian SCHRÖTER, Tim GNOERRLICH, Martin SCHRADER
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Patent number: 9201032Abstract: A gas sensor for detecting combustible gases is provided with a catalytic sensor element. The catalytic sensor element is arranged in a housing (1) surrounding the catalytic sensor element on all sides. The housing has a gas-permeable inlet opening. The gas sensor has electric lines, which are in connection with the sensor element and have terminals located outside of the housing (1). The housing has a gas-permeable inlet opening (2) and a gas-permeable outlet opening (3) and a flow channel (4) connecting the gas-permeable inlet opening (2) and the gas-permeable outlet opening (3). The sensor element is arranged in the flow channel.Type: GrantFiled: February 7, 2013Date of Patent: December 1, 2015Assignee: Dräger Safety AG & Co. KGaAInventors: Jürgen Unger, Mladen Schlichte
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Patent number: 8632666Abstract: An explosion-proof sensor for detecting combustible gases is provided with a glass seal (9) for establishing an electrically conductive connection with the interior of the housing. The sensor is improved in terms of the pressure resistance of the housing. The glass seal (9) has a bending-resistant casting compound (16, 17, 18) mechanically stabilizing the glass seal (9) on at least one side.Type: GrantFiled: September 14, 2010Date of Patent: January 21, 2014Assignee: Dräger Safety AG & Co. KGaAInventors: Mladen Schlichte, Björn Lange
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Patent number: 8381576Abstract: A gas sensor is provided for use in a hazardous explosive atmosphere present continuously or for a long time. The gas sensor is not provided with a pressure-proof housing and is provided with at least one catalytic or semiconductor measuring element (3) in a hollow body (6) defining the measuring element (3) against the environment. The hollow body has breathing openings (4) and wherein the ratio of the area of the breathing openings to the total area of the hollow body equals, furthermore, at most 0.8 or the hollow body is porous with a porous hollow body material having a pore size according to ISO 4003 equal to at most 2 mm.Type: GrantFiled: December 3, 2009Date of Patent: February 26, 2013Assignee: Dräger Safety AG & Co. KGaAInventors: Mladen Schlichte, Jürgen Osswald
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Patent number: 8156782Abstract: A test adapter for the saturated vapor calibration of gas-measuring devices. The test adapter (2) has, in an adapter housing (15), a peripheral edge (7) for receiving a gas-measuring device and has a depression (10) for receiving the sample liquid in the area of the gas-sensitive surface of the gas-measuring device.Type: GrantFiled: July 29, 2008Date of Patent: April 17, 2012Assignee: Dräger Safety AG & Co. KGaAInventors: Matthias Studer, Mladen Schlichte, Markus Wansing, Volker Kuhn
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Patent number: 8153067Abstract: A circuit with at least one catalytic measuring element (1), in which the at least one catalytic measuring element (1) is connected to a supply voltage (5) without a protective resistor and without a thermal safety device arranged upstream. The circuit makes it possible to develop gas-measuring devices with catalytic measuring elements that are characterized by an especially low power consumption.Type: GrantFiled: March 8, 2006Date of Patent: April 10, 2012Assignee: Dräger Safety AG & Co. KGaAInventors: Matthias Martens, Mladen Schlichte
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Publication number: 20110094880Abstract: An explosion-proof sensor for detecting combustible gases is provided with a glass seal (9) for establishing an electrically conductive connection with the interior of the housing. The sensor is improved in terms of the pressure resistance of the housing. The glass seal (9) has a bending-resistant casting compound (16, 17, 18) mechanically stabilizing the glass seal (9) on at least one side.Type: ApplicationFiled: September 14, 2010Publication date: April 28, 2011Applicant: DRÄGER SAFETY AG & CO. KGAAInventors: Mladen SCHLICHTE, Björn LANGE
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Patent number: 7875244Abstract: A gas sensor has shock resistance and temperature resistance attributes. The gas sensor includes at least one catalytic measuring element (3), which is arranged in a sensor housing (1) forming a combustion chamber (2). The sensor housing (1) has at least one gas-permeable housing opening (4) for the gas exchange between the environment and the combustion chamber (2). The catalytic measuring element (3) is arranged between at least two disk-shaped support elements (5) made of a heat-insulating and temperature-resistant material.Type: GrantFiled: June 3, 2008Date of Patent: January 25, 2011Assignee: Dräger Safety AG & Co. KGaAInventors: Mladen Schlichte, Erik Stender
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Publication number: 20100192675Abstract: A gas sensor is provided for use in a hazardous explosive atmosphere present continuously or for a long time. The gas sensor is not provided with a pressure-proof housing and is provided with at least one catalytic or semiconductor measuring element (3) in a hollow body (6) defining the measuring element (3) against the environment. The hollow body has breathing openings (4) and wherein the ratio of the area of the breathing openings to the total area of the hollow body equals, furthermore, at most 0.8 or the hollow body is porous with a porous hollow body material having a pore size according to ISO 4003 equal to at most 2 mm.Type: ApplicationFiled: December 3, 2009Publication date: August 5, 2010Applicant: Dräger Safety AG & Co. KGaAInventors: Mladen SCHLICHTE, Jürgen OSSWALD
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Patent number: 7603887Abstract: A device, a system and a process is provided for the use of a breath alcohol-measuring device (1) with improved personal identification. The breath alcohol-measuring device (1) is combined with a pulse oscillometer (4) such that the initially measured values of the complex airway resistance of a test subject are stored in an evaluating and control unit (3) connected to the breath alcohol-measuring device (1) and to the pulse oscillometer (4) and compared to subsequently measured values of a test subject. A breath alcohol measurement is released and/or a vehicle immobilizer (2) is actuated in case of agreement of stored values with subsequently measured values.Type: GrantFiled: April 11, 2007Date of Patent: October 20, 2009Assignee: Dräger Medical AG & Co. KGInventor: Mladen Schlichte
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Patent number: 7559228Abstract: A process is provided for measuring a gas concentration with at least one thermal measuring element. The thermal measuring element is operated by pulses. A measured value of the gas concentration in the environment of the measuring element is obtained from the evaluation of the response of the measuring element to at least one single pulse by determining transient states of the thermal measuring element. From this the measured value of the gas concentration in the environment of the measuring element can be derived, during the imposed pulse based on electric measured variables.Type: GrantFiled: August 23, 2007Date of Patent: July 14, 2009Assignee: Dräger Safety AG & Co. KGaAInventors: Hans-Jürgen Bahs, Mladen Schlichte, Matthias Martens, Andreas Sürig, Wilfried Diekmann
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Publication number: 20090071226Abstract: A test adapter for the saturated vapor calibration of gas-measuring devices. The test adapter (2) has, in an adapter housing (15), a peripheral edge (7) for receiving a gas-measuring device and has a depression (10) for receiving the sample liquid in the area of the gas-sensitive surface of the gas-measuring device.Type: ApplicationFiled: July 29, 2008Publication date: March 19, 2009Applicant: Drager Safety AG & Co. KGaAInventors: Matthias STUDER, Mladen SCHLICHTE, Markus WANSING, Volker KUHN
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Publication number: 20090016934Abstract: A gas sensor has shock resistance and temperature resistance attributes. The gas sensor includes at least one catalytic measuring element (3), which is arranged in a sensor housing (1) forming a combustion chamber (2). The sensor housing (1) has at least one gas-permeable housing opening (4) for the gas exchange between the environment and the combustion chamber (2). The catalytic measuring element (3) is arranged between at least two disk-shaped support elements (5) made of a heat-insulating and temperature-resistant material.Type: ApplicationFiled: June 3, 2008Publication date: January 15, 2009Applicant: DRAGER SAFETY AG & CO. KGaAInventors: Mladen SCHLICHTE, Erik STENDER
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Patent number: 7426849Abstract: A gas sensor (1) has a pressure-tight sensor housing (4). The sensor housing (4) has a metal plate (5) at its lower end and the metal plate (5) has breakthroughs (6, 7, 8). Metal pins (9, 10, 11) electrically contact the sensor elements (2, 3) and these metal pins are brought to the outside via glass inserts (15, 16, 17).Type: GrantFiled: April 12, 2006Date of Patent: September 23, 2008Assignee: Dräger Safety AG & Co. KGaAInventors: Björn Lange, Mladen Schlichte
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Publication number: 20080034841Abstract: A process is provided for measuring a gas concentration with at least one thermal measuring element. The thermal measuring element is operated by pulses. A measured value of the gas concentration in the environment of the measuring element is obtained from the evaluation of the response of the measuring element to at least one single pulse by determining transient states of the thermal measuring element. From this the measured value of the gas concentration in the environment of the measuring element can be derived, during the imposed pulse based on electric measured variables.Type: ApplicationFiled: August 23, 2007Publication date: February 14, 2008Applicant: Drager Safety AG & Co. KGaAInventors: Hans-Jurgen Bahs, Mladen Schlichte, Matthias Martens, Andreas Surig, Wilfried Diekmann
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Publication number: 20070266766Abstract: A device, a system and a process is provided for the use of a breath alcohol-measuring device (1) with improved personal identification. The breath alcohol-measuring device (1) is combined with a pulse oscillometer (4) such that the initially measured values of the complex airway resistance of a test subject are stored in an evaluating and control unit (3) connected to the breath alcohol-measuring device (1) and to the pulse oscillometer (4) and compared to subsequently measured values of a test subject. A breath alcohol measurement is released and/or a vehicle immobilizer (2) is actuated in case of agreement of stored values with subsequently measured values.Type: ApplicationFiled: April 11, 2007Publication date: November 22, 2007Applicant: DRAEGER MEDICAL AG & CO., KGInventor: Mladen SCHLICHTE
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Patent number: 7287414Abstract: A process is provided for measuring a gas concentration with at least one thermal measuring element. The thermal measuring element is operated by pulses. A measured value of the gas concentration in the environment of the measuring element is obtained from the evaluation of the response of the measuring element to at least one single pulse by determining transient states of the thermal measuring element. From this the measured value of the gas concentration in the environment of the measuring element can be derived, during the imposed pulse based on electric measured variables.Type: GrantFiled: March 8, 2006Date of Patent: October 30, 2007Assignee: Dräger Safety AG & Co. KGaAInventors: Hans-Jürgen Bahs, Mladen Schlichte, Matthias Martens, Andreas Sürig, Wilfried Diekmann
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Publication number: 20060266103Abstract: A process is provided for measuring a gas concentration with at least one thermal measuring element. The thermal measuring element is operated by pulses. A measured value of the gas concentration in the environment of the measuring element is obtained from the evaluation of the response of the measuring element to at least one single pulse by determining transient states of the thermal measuring element. From this the measured value of the gas concentration in the environment of the measuring element can be derived, during the imposed pulse based on electric measured variables.Type: ApplicationFiled: March 8, 2006Publication date: November 30, 2006Applicant: Drager Safety AG & Co. KGaAInventors: Hans-Jurgen Bahs, Mladen Schlichte, Matthias Martens, Andreas Surig, Wilfried Diekmann