Patents by Inventor Tobias Brunner
Tobias Brunner 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: 9784410Abstract: An operating method is provided for a cryopressure tank in which cryogenic hydrogen for supplying a motor vehicle fuel cell can be stored under supercritical pressure at 13 bar or more. In order to compensate the pressure drop resulting from removal of hydrogen from the cryopressure tank, either a heat transfer medium is supplied to a heat exchanger provided in the cryopressure tank via a control valve over a period of time which significantly exceeds the cycle times of a conventional cycle valve or the heat transfer medium is not supplied to the heat exchanger. Depending on the fill level of the cryopressure tank, the control valve is actuated with respect to a desired temperature or a desired pressure of the hydrogen in the cryopressure tank.Type: GrantFiled: September 24, 2014Date of Patent: October 10, 2017Assignee: Bayerische Motoren Werke AktiengesellschaftInventors: Tobias Brunner, Manuel Tolosa
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Patent number: 9770575Abstract: A balloon catheter, in particular for delivering medicaments, stents or medicament-coated stents in the region of a stenosis, comprising an outer shaft (4) an inner shaft (6), and a balloon (7) at the distal catheter end, which balloon is dilatable by a feedable pressure fluid and which is attached with its proximal end (8) to the outer shaft (4) and with its distal end (9) to the inner shaft (6) which protrudes the outer shaft (4) in the distal direction, and a cover sheath (15) which is seated in a covering position over the contracted balloon (7) and is displaceably guided on the outer shaft (4) and which is displaceable on the outer shaft (4) in the proximal direction via its front opening (17) by the dilating balloon (7) while continuously releasing the same from distal to proximal.Type: GrantFiled: October 27, 2011Date of Patent: September 26, 2017Assignee: Biotronik AGInventors: Matthias Wesselmann, Tobias Brunner, Hans Lang
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Patent number: 9640808Abstract: An operating method is provided for a fuel cell system, in particular a fuel cell system in a motor vehicle. The system includes a cooling system via which waste heat of fuel cells of the fuel cell system is ultimately dissipated into the surrounding air, and a tank withstanding an internal pressure of the order of 150 bar and more. In the tank, fuel for the fuel cell system is stored in the cryogenic state, in particular as a cryogen, which tank has a heat exchanger in its storage volume, via which, in order to compensate for the pressure reduction resulting from the removal of fuel from the tank, heat can be supplied to the stored fuel in a controlled manner by way of a heat transfer medium.Type: GrantFiled: September 24, 2014Date of Patent: May 2, 2017Assignee: Bayerische Motoren Werke AktiengesellschaftInventors: Tobias Brunner, Manuel Tolosa
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Patent number: 9625094Abstract: An operating method is provided for a cryo-compressed tank for supplying cryogenic hydrogen to a consumer of a motor vehicle under supercritical pressure at 13 bar or more. In order to compensate for pressure loss resulting from hydrogen removal, the removed hydrogen that has been heated in a heat exchanger is conveyed to a heat exchanger, provided in the cryo-compressed tank, by way of a tank pressure regulating valve and a branch line, which branches off of a supply line leading to the consumer. After flowing through the heat exchanger, it is introduced into the supply line downstream of the branching off of the branch line. Over a period of time that significantly exceeds the cycle times of a conventional frequency valve, either the removed amount of hydrogen is guided without limitation into the heat exchanger, provided in the cryo-compressed tank, the tank pressure regulating valve being completely open, or no return of the heated hydrogen into the heat exchanger occurs at all.Type: GrantFiled: June 2, 2010Date of Patent: April 18, 2017Assignee: Bayerische Motoren Werke AktiengesellschaftInventors: Tobias Brunner, Thomas Hagler, Sylvain Bastian, Klaus Szoucsek
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Publication number: 20150072260Abstract: An operating method is provided for a fuel cell system, in particular a fuel cell system in a motor vehicle. The system includes a cooling system via which waste heat of fuel cells of the fuel cell system is ultimately dissipated into the surrounding air, and a tank withstanding an internal pressure of the order of 150 bar and more. In the tank, fuel for the fuel cell system is stored in the cryogenic state, in particular as a cryogen, which tank has a heat exchanger in its storage volume, via which, in order to compensate for the pressure reduction resulting from the removal of fuel from the tank, heat can be supplied to the stored fuel in a controlled manner by way of a heat transfer medium.Type: ApplicationFiled: September 24, 2014Publication date: March 12, 2015Inventors: Tobias BRUNNER, Manuel TOLOSA
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Publication number: 20150007584Abstract: An operating method is provided for a cryopressure tank in which cryogenic hydrogen for supplying a motor vehicle fuel cell can be stored under supercritical pressure at 13 bar or more. In order to compensate the pressure drop resulting from removal of hydrogen from the cryopressure tank, either a heat transfer medium is supplied to a heat exchanger provided in the cryopressure tank via a control valve over a period of time which significantly exceeds the cycle times of a conventional cycle valve or the heat transfer medium is not supplied to the heat exchanger. Depending on the fill level of the cryopressure tank, the control valve is actuated with respect o a desired temperature or a desired pressure of the hydrogen in the cryopressure tank.Type: ApplicationFiled: September 24, 2014Publication date: January 8, 2015Inventors: Tobias BRUNNER, Manuel TOLOSA
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Patent number: 8282911Abstract: The present relates to the field of dental and bone surgery. In particular, the invention relates to fibrous pharmaceutical compositions; fibrous webs, yarns and woven fabrics of such pharmaceutical compositions; to implant material essentially consisting of fibrous pharmaceutical compositions; to the manufacturing and use of such fibers/webs/implant materials.Type: GrantFiled: October 23, 2006Date of Patent: October 9, 2012Assignees: ETH Zürich, Universitat ZürichInventors: Jan W. Stark, Oliver Schneider, Stefan Loher, Tobias Brunner, Marc Simonet, Patrick Schmidlin, Robert N. Grass
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Publication number: 20120116490Abstract: A balloon catheter, in particular for delivering medicaments, stents or medicament-coated stents in the region of a stenosis, comprising an outer shaft (4) an inner shaft (6), and a balloon (7) at the distal catheter end, which balloon is dilatable by a feedable pressure fluid and which is attached with its proximal end (8) to the outer shaft (4) and with its distal end (9) to the inner shaft (6) which protrudes the outer shaft (4) in the distal direction, and a cover sheath (15) which is seated in a covering position over the contracted balloon (7) and is displaceably guided on the outer shaft (4) and which is displaceable on the outer shaft (4) in the proximal direction via its front opening (17) by the dilating balloon (7) while continuously releasing the same from distal to proximal.Type: ApplicationFiled: October 27, 2011Publication date: May 10, 2012Applicant: BIOTRONIK AGInventors: Matthias Wesselmann, Tobias Brunner, Hans Lang
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Patent number: 8113006Abstract: A system for cryogenic storage and delivery of fuel, particularly for supplying an internal-combustion engine driving a motor vehicle, includes at least a cryotank having an inner reservoir for receiving the cryogenic medium, which inner reservoir is held in a heat-insulated manner in an outer reservoir, a coolable cooling shield between the inner reservoir and the outer reservoir of the cryotank, and a heat sink. As a thermal-energy storage device, the heat sink is in heat-transmitting contact with the cooling shield. A filling and removal device has at least one pipe penetrating the outer reservoir and leading into the inner reservoir. At least for the filling with or for the removal of cryogenic medium, the heat sink is in heat-transmitting contact with the pipe for the cryogenic medium, in order to reduce the entry of heat from the environment into the inner reservoir while emitting heat.Type: GrantFiled: May 25, 2007Date of Patent: February 14, 2012Assignee: Bayerische Motoren Werke AktiengesellschaftInventors: Torsten Rech, Achim Baier, Markus Amsz, Tobias Brunner, Thomas Hagler, Oliver Kircher, Gregor Fischer
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Publication number: 20100236259Abstract: An operating method is provided for a cryo-compressed tank for supplying cryogenic hydrogen to a consumer of a motor vehicle under supercritical pressure at 13 bar or more. In order to compensate for pressure loss resulting from hydrogen removal, the removed hydrogen that has been heated in a heat exchanger is conveyed to a heat exchanger, provided in the cryo-compressed tank, by way of a tank pressure regulating valve and a branch line, which branches off of a supply line leading to the consumer. After flowing through the heat exchanger, it is introduced into the supply line downstream of the branching off of the branch line. Over a period of time that significantly exceeds the cycle times of a conventional frequency valve, either the removed amount of hydrogen is guided without limitation into the heat exchanger, provided in the cryo-compressed tank, the tank pressure regulating valve being completely open, or no return of the heated hydrogen into the heat exchanger occurs at all.Type: ApplicationFiled: June 2, 2010Publication date: September 23, 2010Applicant: Bayerische Motoren Werke AktiengesellschaftInventors: Tobias BRUNNER, Thomas HAGLER, Sylvain BASTIAN, Klaus SZOUCSEK
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Publication number: 20100196440Abstract: The present relates to the field of dental and bone surgery. In particular, the invention relates to fibrous pharmaceutical compositions; fibrous webs, yarns and woven fabrics of such pharmaceutical compositions; to implant material essentially consisting of fibrous pharmaceutical compositions; to the manufacturing and use of such fibers/webs/implant materials.Type: ApplicationFiled: October 23, 2006Publication date: August 5, 2010Applicants: ETH ZURICH, Universitat ZurichInventors: Wendelin Jan Stark, Oliver Schneider, Stefan Loher, Tobias Brunner, Marc Simonet, Patrick Schmidlin, Robert N. Grass
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Publication number: 20100133279Abstract: A cryogenic-capable high pressure container which combines the use of cryogenic-capable high pressure vessels and ultra-thin thermal barrier(s) having a thickness less than about 5 mm because of the reduced thermal requirements of the container from flexible usage, for maximizing storage space. Additional increase in storage capacity may be obtained by using conformable pressure vessels having box-shaped configurations for further maximizing storage space and capacity. Further efficiencies may be achieved by nesting high pressure vessels inside box-shaped lower pressure vessels to utilize for storage the interstitial spaces form between them.Type: ApplicationFiled: January 20, 2010Publication date: June 3, 2010Inventors: Gene D. Berry, Salvador M. Aceves, Andrew H. Weisberg, Francisco Espinosa-Loza, Timothy O. Ross, Tobias Brunner, Oliver Kircher, Bastian Landeck
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Publication number: 20090308083Abstract: In a method for filling a cryo-compressed tank of a motor vehicle with a cryogenic storage medium, such as hydrogen, which can be stored in the tank under absolute pressure values in an order of magnitude of 150 bar or more, the hydrogen is taken in the liquid state at a suitable saturation temperature under essentially ambient pressure from a large supply vessel. Following removal from the large supply vessel, the hydrogen is compressed essentially adiabatically with a cryo pump and then is introduced at super critical pressure (13 bar or more) into the cryo-compressed tank. Preferably beforehand it is also re-cooled to approximately 20 K passing it through a heat exchanger, disposed in the hydrogen, stored in the large supply vessel. Before filling with new storage medium, the residual storage medium, contained in the cryo-compressed tank, can be removed from the cryo-compressed tank and introduced into the large supply vessel.Type: ApplicationFiled: August 25, 2009Publication date: December 17, 2009Applicant: Bayerische Motoren Werke AktiengesellschaftInventor: Tobias BRUNNER
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Publication number: 20070277533Abstract: A system for cryogenic storage and delivery of fuel, particularly for supplying an internal-combustion engine driving a motor vehicle, includes at least a cryotank having an inner reservoir for receiving the cryogenic medium, which inner reservoir is held in a heat-insulated manner in an outer reservoir, a coolable cooling shield between the inner reservoir and the outer reservoir of the cryotank, and a heat sink. As a thermal-energy storage device, the heat sink is in heat-transmitting contact with the cooling shield. A filling and removal device has at least one pipe penetrating the outer reservoir and leading into the inner reservoir. At least for the filling with or for the removal of cryogenic medium, the heat sink is in heat-transmitting contact with the pipe for the cryogenic medium, in order to reduce the entry of heat from the environment into the inner reservoir while emitting heat.Type: ApplicationFiled: May 25, 2007Publication date: December 6, 2007Applicant: Bayerische Motoren Werke AktiengesellschaftInventors: Torsten RECH, Achim Baier, Markus Amsz, Tobias Brunner, Thomas Hagler, Oliver Kircher, Gregor Fischer