Patents by Inventor Helmut Weske

Helmut Weske 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).

  • High-pressure discharge lamp with starting aid and method for producing the same
    Patent number: 8531106
    Abstract: In a high-pressure discharge lamp including a ceramic discharge vessel, a secure connection between a hybrid antenna as starting aid and a leadthrough of the discharge vessel is provided by virtue of the fact that a means between leadthrough and extension limits the ohmic resistance between leadthrough and hybrid antenna preferably to at most 100?.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: September 10, 2013
    Assignee: Osram AG
    Inventors: Markus Demmert, Andreas Hohlfeld, Helmut Weske, Ingmar Wieler, Ludger Wilken
  • HIGH-PRESSURE DISCHARGE LAMP WITH STARTING AID AND METHOD FOR PRODUCING THE SAME
    Publication number: 20120146496
    Abstract: In a high-pressure discharge lamp including a ceramic discharge vessel, a secure connection between a hybrid antenna as starting aid and a leadthrough of the discharge vessel is provided by virtue of the fact that a means between leadthrough and extension limits the ohmic resistance between leadthrough and hybrid antenna preferably to at most 100?.
    Type: Application
    Filed: December 9, 2011
    Publication date: June 14, 2012
    Applicant: OSRAM AG
    Inventors: Markus Demmert, Andreas Hohlfeld, Helmut Weske, Ingmar Wieler, Ludger Wilken
  • High-pressure discharge lamp having a ceramic discharge vessel, sintered body suitable therefor, and method for producing the sintered body
    Patent number: 5625256
    Abstract: A ceramic discharge vessel (6) for a high-pressure discharge lamp (1) made from a sintered body of optically translucent polycrystalline alumina ceramic which is doped with only 100-800 ppm MgO, only 200-1200 ppm ZrO.sub.2 and only 10-300 ppm Y.sub.2 O.sub.3 (by weight). This improves the loading capacity and operating characteristics of the vessel and of the lamp.
    Type: Grant
    Filed: November 29, 1994
    Date of Patent: April 29, 1997
    Assignees: Patent-Treuhand-Gesellschaft F. Elektrische Gluehlampen mbH, NGK Insulators, Ltd.
    Inventors: Rita Tiedt, Helmut Weske, Koichiro Maekawa, Junichi Doi
  • Dual-envelope high-pressure discharge lamp with thermostatically controlled starting strip
    Patent number: 5079479
    Abstract: To eliminate a holding frame for a starting wire (20) outside of an elongd discharge vessel (1), the starting wire (20) is directly connected to one of the electrode leads (4, 5), typically niobium tubes, by a bimetal strip (21) which is, preferably, bent in stepped form or Z shape. Under cold conditions, the strip or wire (20) is in engagement with the outside of the discharge vessel (1) to assist in starting, due to its electrical connection via the bimetal strip (21) with one of the electrodes; upon heating of the lamp, the bimetal strip (21) will lift the wire (20) off engagement with the discharge vessel (1) and thus prevent deterioration thereof.
    Type: Grant
    Filed: March 20, 1991
    Date of Patent: January 7, 1992
    Assignee: Patent Treuhand Gesellschaft fur Elektrische Gluhlampen mbH
    Inventors: Helmut Weske, Manfred Koenig, Klaus Kramer