Patents by Inventor Wolfgang Daeumer

Wolfgang Daeumer 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: 11431154
    Abstract: A triggerable spark gap, a switching circuit and a method for manufacturing a triggerable spark gap are disclosed. In an embodiment, a triggerable spark gap includes a trigger electrode, an adjacent electrode at the trigger electrode, a counter electrode and a gap between the counter electrode and the adjacent electrode, wherein a distance between the trigger electrode and the adjacent electrode is less than a distance between the trigger electrode and the counter electrode, wherein the distance between the trigger electrode and the counter electrode is less than a distance between the adjacent electrode and the counter electrode, wherein the counter electrode and/or the adjacent electrode includes a first phase including a first material and a second phase including a second material, and wherein the second material has a lower electron work function than the first material.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: August 30, 2022
    Assignee: TDK ELECTRONICS AG
    Inventors: Wolfgang Daeumer, Michael Mewes, Zhipeng Fang
  • Publication number: 20200287357
    Abstract: A triggerable spark gap, a switching circuit and a method for manufacturing a triggerable spark gap are disclosed. In an embodiment, a triggerable spark gap includes a trigger electrode, an adjacent electrode at the trigger electrode, a counter electrode and a gap between the counter electrode and the adjacent electrode, wherein a distance between the trigger electrode and the adjacent electrode is less than a distance between the trigger electrode and the counter electrode, wherein the distance between the trigger electrode and the counter electrode is less than a distance between the adjacent electrode and the counter electrode, wherein the counter electrode and/or the adjacent electrode includes a first phase including a first material and a second phase including a second material, and wherein the second material has a lower electron work function than the first material.
    Type: Application
    Filed: November 8, 2018
    Publication date: September 10, 2020
    Inventors: Wolfgang Daeumer, Michael Mewes, Zhipeng Fang
  • Patent number: 9614370
    Abstract: A surge arrester comprises an electrical insulator (10), which surrounds a cavity (20), a pin electrode (30) and a tube electrode (40), which are arranged in the cavity (20), wherein the pin electrode (30) projects into the tube electrode (40). An ignition strip (50) is applied on an inner surface (S10a) of the insulator facing the cavity (20). An outer metallization (61, 62, 63) is arranged on an outer surface (S10b) of the insulator (10). As a result, an effective reduction of the protection level can be achieved in the case of the surge arrester.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: April 4, 2017
    Assignee: EPCOS AG
    Inventors: Wolfgang Daeumer, Frank Werner, Eberhard Soelter
  • Publication number: 20150077894
    Abstract: A surge arrester comprises an electrical insulator (10), which surrounds a cavity (20), a pin electrode (30) and a tube electrode (40), which are arranged in the cavity (20), wherein the pin electrode (30) projects into the tube electrode (40). An ignition strip (50) is applied on an inner surface (S10a) of the insulator facing the cavity (20). An outer metallization (61, 62, 63) is arranged on an outer surface (S10b) of the insulator (10). As a result, an effective reduction of the protection level can be achieved in the case of the surge arrester.
    Type: Application
    Filed: March 26, 2013
    Publication date: March 19, 2015
    Applicant: EPCOS AG
    Inventors: Wolfgang Daeumer, Frank Werner, Eberhard Soelter
  • Patent number: 8189315
    Abstract: A surge arrester includes two side electrodes extending into an interior space formed by means of at least one insulating body and a central electrode. The end-side distance between the side electrodes is greater than the distances between a respective side electrode and the central electrode. The distance between the side electrodes is less than the distance between the end regions of the central electrode and a base of the side electrodes.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: May 29, 2012
    Assignee: EPCOS AG
    Inventors: Juergen Boy, Wolfgang Daeumer
  • Publication number: 20100309598
    Abstract: A surge arrester includes two side electrodes extending into an interior space formed by means of at least one insulating body and a central electrode. The end-side distance between the side electrodes is greater than the distances between a respective side electrode and the central electrode. The distance between the side electrodes is less than the distance between the end regions of the central electrode and a base of the side electrodes.
    Type: Application
    Filed: June 17, 2010
    Publication date: December 9, 2010
    Inventors: Juergen Boy, Wolfgang Daeumer
  • Patent number: 7795810
    Abstract: A gas-filled discharge gap includes at least two electrodes and an electrode-activation mass that is arranged on at least one of the electrodes. The electrode-activation mass contains K2WO4.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: September 14, 2010
    Assignee: Epcos AG
    Inventors: Juergen Boy, Wolfgang Daeumer, Frank Werner
  • Publication number: 20080048545
    Abstract: A gas-filled discharge gap includes at least two electrodes and an electrode-activation mass that is arranged on at least one of the electrodes. The electrode-activation mass contains K2WO4.
    Type: Application
    Filed: September 21, 2007
    Publication date: February 28, 2008
    Inventors: Juergen Boy, Wolfgang Daeumer, Frank Werner
  • Patent number: 6529361
    Abstract: Gas-filled discharge paths such as voltage surge protectors and spark gaps can have a low ignition delay in dark spaces when a special activating compound is used. To simplify the manufacture of such discharge paths, fully nickel-plated electrodes are used; in addition, nickel in a metallic form, in addition to titanium, is also added to the special activating compound.
    Type: Grant
    Filed: August 9, 2000
    Date of Patent: March 4, 2003
    Assignee: Epcos AG
    Inventors: Bernd Petschel, Wolfgang Daeumer, Juergen Boy
  • Patent number: 5995355
    Abstract: In order to optimize the so-called light-dark effect, i.e., the difference in ignition voltage between the first and second ignition after dark storage in gas-filled discharge paths, an additional component made of an oxide compound of cesium and a transition metal such as tungsten, chromium, niobium, vanadium or molybdenum is added in a quantity of 5 to 25% by weight to the activating compound which is comprised of several components. The other components of the activating compound include a barium compound and a transition metal in metallic form such as titanium, and an alkaline halide or an alkaline earth halide and/or sodium silicate and/or potassium silicate as a basic component.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: November 30, 1999
    Assignee: Siemens AG
    Inventor: Wolfgang Daeumer
  • Patent number: 5892648
    Abstract: A gas-filled overvoltage arrester with an electrode activation compound. In order to ensure a high degree of adherence of the activation compound to the electrodes in a gas-filled hydrogen-containing overvoltage arrester, the activation compound comprises a first aluminum component, a second halide component, and a third dielectric or ferroelectric metal oxide component. These three components are present in the proportions of 50 to 70, 20 to 40, and 3 to 10 mol. %, respectively.
    Type: Grant
    Filed: August 5, 1997
    Date of Patent: April 6, 1999
    Assignee: Siemens Aktiengesellschaft
    Inventors: Peter Bobert, Winfried Voelkner, Wolfgang Daeumer, Juergen Boy
  • Patent number: 5407645
    Abstract: A heated hydrogen storage device for a plasma switch includes a ring-shaped holder element having an inwardly directed, ring-shaped shoulder that forms an opening. The device also includes a first and a second metal disk, with the first metal disk having a cut-out portion. A heating element is arranged between the first and second metal disks and is insulated therefrom. The heating element forms a turned heating track and has one end contacting the second metal disk and a second end extending outside through the cut-out portion of the first metal disk. The first metal disk and the heating element are stacked one above the another and rests on the ring-shaped shoulder of the ring-shaped holder element. The second metal disk is connected to the holder element and it covers the opening of the holder element. The second metal disk also fixes the first metal disk and the heating element in position.
    Type: Grant
    Filed: August 5, 1993
    Date of Patent: April 18, 1995
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wolfgang Daeumer, Dieter Gerlach