Patents by Inventor Wilfried Ludwig

Wilfried Ludwig 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).

  • Halogen incandescent lamp
    Patent number: 7391146
    Abstract: A halogen incandescent lamp has a transparent sealed bulb, a gas filling comprising an inert gas and a halogen additive, a luminous element which is attached to a current supply system extending in a pinched portion of the bulb, and a mount extending from at least adjacent the outside of the pinched portion into the bulb and comprising at least one metal support wire which retains the luminous element in the vicinity of the end of the bulb remote from the pinched portion. The mount has a non-conducting part such that the outer end of the part of the mount at or near the outside of the pinched portion and the support wire are electrically insulated from each other.
    Type: Grant
    Filed: November 27, 2003
    Date of Patent: June 24, 2008
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Jacobus Marinus Maria Claassens, Joseph Franciscus Raymond Eijsermans, Wilfried Ludwig Kohlmann
  • Apparatus for fastening machine element to a shaft
    Patent number: 4574448
    Abstract: In a method for fixedly mounting a machine element such as a bearing on a smooth shaft, the material of the shaft is displaced by forcing a stamping tool into an outer surface of the shaft, in a direction at an angle to the axis of the shaft.
    Type: Grant
    Filed: July 10, 1984
    Date of Patent: March 11, 1986
    Assignee: SKF Kugellagerfabriken GmbH
    Inventors: Manfred Brandenstein, Willi Gossmann, Gebhard Pape, Klaus Huttner, Wilfried Ludwig