Patents by Inventor Hans Joachim Wirth

Hans Joachim Wirth 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: 6986594
    Abstract: A lighting device for motor vehicles comprises a light source and an end cover having at least a first section and a second section. The lighting device further comprises a first reflector, which directs light emitted by the light source on to the end cover. A first optically active element is arranged in the ray path between the light source and the first reflector and deflects the light rays emitted by the light source, so that the deflected rays strike the first reflector at an angle of incidence, the associated angle of reflection of which causes the rays from the first reflector to be directed at least substantially on to the second section of the end cover.
    Type: Grant
    Filed: April 15, 2003
    Date of Patent: January 17, 2006
    Assignee: Valeo Wischersystem GmbH
    Inventors: Hans Joachim Wirth, Matthias Purz, Katrin Burgemeister
  • Publication number: 20030218882
    Abstract: A lighting device (10) for motor vehicles comprises a light source (12) and an end cover (16) having at least a first section (18) and a second section (20). The lighting device (10) further comprises a first reflector (14), which directs light emitted by the light source (12) on to the end cover (16). A first optically active element (26) is arranged in the ray path between the light source (12) and the first reflector (14) and deflects the light rays emitted by the light source (12), so that the deflected rays strike the first reflector (14) at an angle of incidence, the associated angle of reflection of which causes the rays from the first reflector (14) to be directed at least substantially on to the second section (20) of the end cover (16).
    Type: Application
    Filed: April 15, 2003
    Publication date: November 27, 2003
    Inventors: Hans Joachim Wirth, Matthias Purz, Katrin Burgemeister
  • Patent number: 5083243
    Abstract: A lamp for motor vehicles including a fog warning or backup lamp. The lamp comprises a lamp compartment which is covered by a transparent cover glass towards the front portion. A bulb projects into the lamp compartment from the back and a parabolic reflector diverts light from the bulb onto the cover glass. High light values are obtained even in the case of a small light transmitting surface at the front of the lamp compartment. This is achieved in that the cross-section of the lamp compartment is larger than the light transmitting surface at the front of the lamp compartment and that the bulb is partly surrounded by a ball reflector which is located outside the light transmitting surface. The center of the ball reflector is at least approximately identical with the filament of the bulb and the ball reflector casts light form the bulb onto the parabolic reflector.
    Type: Grant
    Filed: November 25, 1989
    Date of Patent: January 21, 1992
    Assignee: SWF Auto-Electric GmbH
    Inventors: Annerose Paulat, Hans-Joachim Wirth
  • Patent number: 4835666
    Abstract: A signal lamp for an automotive vehicle is disclosed including a housing having at least two individual signal compartments each including a light source and a common glass cover having a predetermined color. A colorless carrier disc having black opaque stripes on one side of the carrier disc and lens elements on an opposite side spans both compartments. A red color filter spans one compartment between the carrier disc and the one compartment lamp and an unsaturated light filter of a color different from the color of the glass cover spans the other compartment between the carrier disc and the other lamp. In the off condition of both lamps, the signal lamp color is determined by the color of the glass cover. The red filter produces a red signal when the one lamp is on.
    Type: Grant
    Filed: October 22, 1987
    Date of Patent: May 30, 1989
    Assignee: SWF Auto-Electric GmbH
    Inventors: Rolf Feger, Gunther Holzmacher, Hans-Joachim Wirth
  • Patent number: 4383290
    Abstract: A signal lamp is disclosed for use in automotive vehicles. The lamp includes a housing, a reflector for producing parallel rays, a lens closing the housing in the direction of light exit and diaphragms mounted behind the lens. The outside of the lens is provided with non-reflecting or weakly reflecting transverse stripes to avoid undesired reflections. In one advantageous embodiment, the diaphragms are positioned only in an upper portion of the lamp.
    Type: Grant
    Filed: June 30, 1980
    Date of Patent: May 10, 1983
    Assignee: ITT Industries Inc.
    Inventors: Helmut Binder, Gerhard Haar, Eckhardt Schmid, Hans-Joachim Wirth