Patents by Inventor Rainer Zentner
Rainer Zentner 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: 11305285Abstract: A cap closes a sample vessel for the microwave treatment of samples. The cap contains a closure body for closing the sample vessel. The closure body is fitted to the sample vessel and closes the sample vessel at a sealing surface. A spring-loaded pressure relief valve and a vent duct are provided. The vent duct, the pressure relief valve and the closure body are configured in such a manner that the vent duct connects the closure body via the pressure relief valve to the surrounding area such that when a defined first pressure level is exceeded at the closure body excess pressure can escape through the vent duct into the area surrounding the cap. A reservoir is provided. The reservoir and the vent duct are configured such that condensate precipitating in the vent duct accumulates in the reservoir when the cap is in the state fitted to the sample vessel.Type: GrantFiled: July 11, 2019Date of Patent: April 19, 2022Assignee: Anton Paar GmbHInventor: Rainer Zentner
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Patent number: 10973092Abstract: An arrangement for heating a sample by microwave radiation is provided. The arrangement includes a container having an inner space for accommodating the sample and having a bottom container wall, a wave guide arranged to guide a microwave having an electric field direction, a waveguide adapter being adapted to couple the microwave from the wave guide into the inner space of the container via the bottom container wall being oriented to be different from perpendicular to, in particular substantially parallel to, the electric field vector direction.Type: GrantFiled: March 23, 2018Date of Patent: April 6, 2021Assignee: Anton Paar GmbHInventors: Heimo Kotzian, Rainer Zentner
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Publication number: 20200023356Abstract: A cap closes a sample vessel for the microwave treatment of samples. The cap contains a closure body for closing the sample vessel. The closure body is fitted to the sample vessel and closes the sample vessel at a sealing surface. A spring-loaded pressure relief valve and a vent duct are provided. The vent duct, the pressure relief valve and the closure body are configured in such a manner that the vent duct connects the closure body via the pressure relief valve to the surrounding area such that when a defined first pressure level is exceeded at the closure body excess pressure can escape through the vent duct into the area surrounding the cap. A reservoir is provided. The reservoir and the vent duct are configured such that condensate precipitating in the vent duct accumulates in the reservoir when the cap is in the state fitted to the sample vessel.Type: ApplicationFiled: July 11, 2019Publication date: January 23, 2020Inventor: RAINER ZENTNER
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Patent number: 10390388Abstract: A microwave heating system comprises a bowl, dome and rotor device. The dome is fit to the bowl. The bowl and dome form a volume. The bowl is connected to a microwave source such that a microwave field is supplied to the volume. The microwave field is attenuated in a region between the rotor device and the dome compared to a region between the bowl and the rotor device. The rotor device is rotatably supported by the bowl and supports a reaction vessel. The rotor device includes a base plate with a through-hole and a tubular member that receives the reaction vessel. The base plate and tubular member are metal. The rotor device is coupled to the base plate so that a longitudinal axis of the tubular member passes through the through-hole.Type: GrantFiled: September 26, 2014Date of Patent: August 20, 2019Assignee: Anton Paar GmbHInventors: Heimo Kotzian, Rainer Zentner, Johannes Zach, Elisabeth Gangl
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Publication number: 20180302959Abstract: An arrangement for heating a sample by microwave radiation is provided. The arrangement includes a container having an inner space for accommodating the sample and having a bottom container wall, a wave guide arranged to guide a microwave having an electric field direction, a waveguide adapter being adapted to couple the microwave from the wave guide into the inner space of the container via the bottom container wall being oriented to be different from perpendicular to, in particular substantially parallel to, the electric field vector direction.Type: ApplicationFiled: March 23, 2018Publication date: October 18, 2018Inventors: Heimo Kotzian, Rainer Zentner
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Publication number: 20150090710Abstract: A microwave heating system comprises a bowl, dome and rotor device. The dome is fit to the bowl. The bowl and dome form a volume. The bowl is connected to a microwave source such that a microwave field is supplied to the volume. The microwave field is attenuated in a region between the rotor device and the dome compared to a region between the bowl and the rotor device. The rotor device is rotatably supported by the bowl and supports a reaction vessel. The rotor device includes a base plate with a through-hole and a tubular member that receives the reaction vessel. The base plate and tubular member are metal. The rotor device is coupled to the base plate so that a longitudinal axis of the tubular member passes through the through-hole.Type: ApplicationFiled: September 26, 2014Publication date: April 2, 2015Inventors: Heimo Kotzian, Rainer Zentner, Johannes Zach, Elisabeth Gangl
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Publication number: 20150093308Abstract: There is described a device for rotatably supporting at least one reaction vessel in a microwave heating apparatus. The described device comprises (a) a base plate comprising at least one through-hole, and (b) at least one tubular member having a longitudinal axis and being adapted to receive a reaction vessel and to be coupled to the base plate in such a way that the longitudinal axis of the at least one tubular member passes through the at least one through-hole, wherein the at least one tubular member comprises metal. Furthermore, there is described a system for performing digestion or synthesis comprising a microwave heating apparatus and a device as described above.Type: ApplicationFiled: September 27, 2013Publication date: April 2, 2015Applicant: Anton Paar GmbHInventors: Rainer Zentner, Heimo Kotzian, Johannes Zach, Josef Schnur, Elisabeth Gangl
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Patent number: 8969768Abstract: The present invention relates a microwave applicator for heating a sample by microwave radiation which is transmitted via an at least partially tapering transmission duct from a microwave source to a cavity adapted to receive the sample to be heated. The transmission duct has at least one external wall, said wall defining an internal space for the propagation of said microwave radiation and comprising an interface which is at least partially permeable to said microwave radiation. The interface is at least partially arranged within said tapering portion of the duct. The duct is adapted to form a jacket surrounding the cavity with said interface forming an inner wall of said jacket.Type: GrantFiled: January 29, 2009Date of Patent: March 3, 2015Assignee: Anton Paar GmbHInventors: Heimo Kotzian, Johannes Zach, Rainer Zentner
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Patent number: 8383999Abstract: The present invention concerns a device for heating a sample by microwave radiation comprising a source of microwave radiation, a first waveguide for guiding said microwave radiation to an applicator space adapted to receive said sample to be heated, wherein said applicator space is defined by a terminal portion of said first waveguide and an initial portion of a second waveguide extending from said terminal portion of said first waveguide and being arranged at an angle with respect to said first waveguide.Type: GrantFiled: April 22, 2010Date of Patent: February 26, 2013Assignee: Anton Paar GmbHInventors: Heimo Kotzian, Klaus-Jürgen Pendl, Johannes Zach, Rainer Zentner
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Patent number: 8319161Abstract: The present invention concerns a method and a device for uniformly heating a sample by microwave radiation. According to the invention, at least one stirring element is immersed at least partly in a sample to be heated, said stirring element comprising a magnetic or magnetisable material. A rotating or oscillating magnetic field interacting with said stirring element is generated in a cavity adapted to receive the sample to be heated in order to impart a rotational or translational movement to said stirring element. The rotational or translational movement of said stirring element is contactlessly detected while applying microwave radiation to said sample.Type: GrantFiled: April 22, 2010Date of Patent: November 27, 2012Assignee: Anton Paar GmbHInventors: Johannes Zach, Rainer Zentner, Anton Ziegler, Heimo Kotzian
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Publication number: 20100270291Abstract: The present invention concerns a device for heating a sample by microwave radiation comprising a source of microwave radiation, a first waveguide for guiding said microwave radiation to an applicator space adapted to receive said sample to be heated, wherein said applicator space is defined by a terminal portion of said first waveguide and an initial portion of a second waveguide extending from said terminal portion of said first waveguide and being arranged at an angle with respect to said first waveguide.Type: ApplicationFiled: April 22, 2010Publication date: October 28, 2010Inventors: Heimo Kotzian, Klaus-Jürgen Pendl, Johannes Zach, Rainer Zentner
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Publication number: 20100270290Abstract: The present invention concerns a method and a device for uniformly heating a sample by microwave radiation. According to the invention, at least one stirring element is immersed at least partly in a sample to be heated, said stirring element comprising a magnetic or magnetisable material. A rotating or oscillating magnetic field interacting with said stirring element is generated in a cavity adapted to receive the sample to be heated in order to impart a rotational or translational movement to said stirring element. The rotational or translational movement of said stirring element is contactlessly detected while applying microwave radiation to said sample.Type: ApplicationFiled: April 22, 2010Publication date: October 28, 2010Inventors: Johannes Zach, Rainer Zentner, Anton Ziegler, Heimo Kotzian
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Publication number: 20090194528Abstract: The present invention relates a microwave applicator for heating a sample by microwave radiation which is transmitted via an at least partially tapering transmission duct from a microwave source to a cavity adapted to receive the sample to be heated. The transmission duct has at least one external wall, said wall defining an internal space for the propagation of said microwave radiation and comprising an interface which is at least partially permeable to said microwave radiation. The interface is at least partially arranged within said tapering portion of the duct. The duct is adapted to form a jacket surrounding the cavity with said interface forming an inner wall of said jacket.Type: ApplicationFiled: January 29, 2009Publication date: August 6, 2009Inventors: Heimo Kotzian, Johannes Zach, Rainer Zentner
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Publication number: 20060239863Abstract: The invention relates to a line element for handling fluids, in particular for digestion or for synthesis of substances in chemical process engineering, said line element comprising at least one temperature-resistant and pressure-resistant support element (15) that has a first interior in which an inner line (14) made of a plastic material resistant to chemicals is arranged, at least one free end of the line element being provided with a connector element (16) that has a second interior into which the inner line (14) extends, the line element according to the invention being characterized in that the support element (15) and/or the connector element (16) has at least one relief opening (25, 26) which ensures a communicating link between the first interior of the support element (15), or second interior of the connector element (16), and the environment.Type: ApplicationFiled: April 19, 2006Publication date: October 26, 2006Inventors: Hannes Zach, Markus Lafer, Peter Kettisch, Rainer Zentner