Patents by Inventor Peter Unternaehrer

Peter Unternaehrer 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).

  • Patent number: 9867316
    Abstract: A cooling apparatus is provided for a switchgear. The switchgear has one or more primary contacts constructed and arranged to connect to a terminal of a circuit breaker. The cooling apparatus includes an evaporator constructed and arranged to be associated with each primary contact. A condenser is located at a higher elevation than the evaporator. Fluid conduit structure fluidly connects the evaporator with the condenser. A portion of the fluid conduit structure defines a busbar tube electrically connected with an associated primary contact and defining a busbar of the switchgear. Working fluid is in the evaporator so as to be heated to a vapor state, with the fluid conduit structure being constructed and arranged to transfer the vapor to the condenser and to passively return condensed working fluid back to the evaporator for cooling the at least one primary contact and the associated busbar tube.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: January 9, 2018
    Assignee: ABB Schweiz AG
    Inventors: Patrik Kaufmann, Tilo Buehler, Gabriel Schuler, Peter Unternaehrer
  • Publication number: 20150047372
    Abstract: A cooling apparatus is provided for a switchgear. The switchgear has one or more primary contacts constructed and arranged to connect to a terminal of a circuit breaker. The cooling apparatus includes an evaporator constructed and arranged to be associated with each primary contact. A condenser is located at a higher elevation than the evaporator. Fluid conduit structure fluidly connects the evaporator with the condenser. A portion of the fluid conduit structure defines a busbar tube electrically connected with an associated primary contact and defining a busbar of the switchgear. Working fluid is in the evaporator so as to be heated to a vapor state, with the fluid conduit structure being constructed and arranged to transfer the vapor to the condenser and to passively return condensed working fluid back to the evaporator for cooling the at least one primary contact and the associated busbar tube.
    Type: Application
    Filed: March 13, 2013
    Publication date: February 19, 2015
    Applicant: ABB Technology AG
    Inventors: Patrik Kaufmann, Tilo Buehler, Gabriel Schuler, Peter Unternaehrer
  • Publication number: 20100208768
    Abstract: A temperature monitoring apparatus for high-voltage or medium-voltage components has a transducer which can produce a mechanical signal, which is dependent on the temperature of the component to be monitored. The mechanical signal is transmitted to an electrically isolating transmission element, for example in the form of a rod, and from the transmission element to a movement sensor. The transmission element can be arranged in an electrically isolating hollow body. This arrangement allows the movement sensor to be isolated from high voltages. The apparatus is composed of robust components, and can have a long life.
    Type: Application
    Filed: April 30, 2010
    Publication date: August 19, 2010
    Applicant: ABB Technology AG
    Inventors: Martin Lakner, Roman Eberle, Tilo Buehler, Daniel Chartouni, Peter Unternaehrer, Arthur Suess, Jean-Claude Mauroux
  • Patent number: 7557295
    Abstract: An exemplary isolating tube, and production method thereof, includes a mechanically load-bearing plastic tube composed of a fiber-reinforced polymer for use in a cooling element which can be loaded with high voltage, during whose operation the isolating tube forms an electrical isolation gap and in the tube interior carries an agent which flows as a liquid and/or vapor. The isolating tube can have a diffusion barrier which is held coaxially by the plastic tube. Such an isolating tube can be produced using an exemplary novel method for production.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: July 7, 2009
    Assignee: ABB Research Ltd
    Inventors: Jochen Kiefer, Martin Lakner, Daniel Chartouni, Jean-Claude Mauroux, Leopold Ritzer, Peter Unternaehrer, Thomas Schoenemann, Marc Mollenkopf, Lukas Zehnder
  • Publication number: 20080049384
    Abstract: A cooling device is disclosed for an electrical operating means, which has a surface to be cooled. The cooling device comprises a coolant, a peripheral wall, whose interior defines a volume for the coolant, a fastening for fastening the cooling device to the electrical operating means, and a contact-pressure means. The peripheral wall has a thermally conductive contact wall with a contact face, which is designed for areal contact with the surface to be cooled. The contact-pressure means mechanically prestresses the contact wall in order to produce an areal contact pressure of the contact face against the surface to be cooled when the cooling device is fastened to the electrical operating means.
    Type: Application
    Filed: August 17, 2007
    Publication date: February 28, 2008
    Applicant: ABB Research Ltd
    Inventors: Peter Unternaehrer, Martin Lakner, Jean-Claude Mauroux, Daniel Chartouni, Tilo Buhler, David Just
  • Publication number: 20070209790
    Abstract: An isolating tube is disclosed having a mechanically load-bearing plastic tube composed of a fiber-reinforced polymer for use in a cooling element which can be loaded with high voltage, during whose operation the isolating tube forms an electrical isolation gap and in the tube interior carries an agent which flows as a liquid and/or vapor. The isolating tube has a diffusion barrier which is held coaxially by the plastic tube. Methods for production of the isolating tube are disclosed.
    Type: Application
    Filed: May 14, 2007
    Publication date: September 13, 2007
    Applicant: ABB Research Ltd
    Inventors: Jochen Kiefer, Martin Lakner, Daniel Chartouni, Jean-Claude Mauroux, Leopold Ritzer, Peter Unternaehrer, Thomas Schoenemann, Marc Mollenkopf, Lukas Zehnder