Patents by Inventor Fred Delb

Fred Delb 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).

  • Headlamp for motor vehicles
    Patent number: 5289352
    Abstract: A headlamp for motor vehicles has a reflector, a gas discharge lamp, a front plate covering a light exit opening of the headlamp, and a filter arranged in a beam path of light beams reflected by the reflector and light beams transmitted directly to the front plate and at least partially absorbing light in a UV wavelength region.
    Type: Grant
    Filed: February 12, 1992
    Date of Patent: February 22, 1994
    Assignee: Robert Bosch GmbH
    Inventors: Bodo Remus, Dieter Sieber, Jurgen Stein, Gunter Hege, Tilman Spingler, Friedrich Schmied, Peter Kusserow, Hans-Jurgen Schneider, Christian Jager, Bernhard Worner, Fred Delb, Thomas Weigold, Kay Kolberg, Karl-Heinrich Preis
  • Headlight for motor vehicles
    Patent number: 5237489
    Abstract: A headlight for motor vehicles has a reflector, a gas discharge lamp inserted in the reflector, an electrical pre-switching device arranged to supply the gas discharge lamp with high voltage, a lamp support via which the gas discharge lamp is inserted in the reflector, a detachable protective cap which covers the lamp support and the gas discharge lamp at their rear, an electrical line connected with the pre-switching device, and a switch arranged in the line and openable when the protective cap is removed so that the operation of the gas discharge lamp is prevented when the switch is opened.
    Type: Grant
    Filed: May 26, 1992
    Date of Patent: August 17, 1993
    Assignee: Robert Bosch GmbH
    Inventors: Jurgen Stein, Bernhard Worner, Fred Delb, Thomas Weigold, Friedrich Schmied, Peter Kusserow, Bernd Kaiser