Patents by Inventor Wolfgang Robel

Wolfgang Robel 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).

  • CLEANING DEVICE
    Publication number: 20010054655
    Abstract: A cleaning device has a tank for liquid and a conveying device as well as an outlet opening. A conduit is connected to the tank and to the outlet opening. The conveying device is connected to the conduit and introduces a compressed gas into the conduit so that the cleaning medium exiting from outlet opening is a mixture of the liquid contained in the tank and the compressed gas.
    Type: Application
    Filed: August 9, 1999
    Publication date: December 27, 2001
    Inventors: ROLAND BERG, HANS-CLEMENS STEFFEL, HELMUT HAF, WOLFGANG ROBEL
  • Light, especially tail light, for a motor vehicle
    Patent number: 6196704
    Abstract: A light arrangement for a vehicle has a light source mounted in a reflector. A light disc is connected to the front end of the reflector in front of the light source. At least one emitter emitting a light signal and at least one receiver receiving the light signal are provided for detecting the degree of soiling of the light arrangement. The light signal travels through the light disc by total reflection to be then received by the receiver.
    Type: Grant
    Filed: April 26, 1999
    Date of Patent: March 6, 2001
    Assignee: Reitter & Schefenacker GmbH
    Inventors: Winfried Hardy Gauch, Wolfgang Robel
  • Light assembly, preferably tail light assembly, of a vehicle, preferably a motor vehicle
    Patent number: 6016035
    Abstract: A light assembly for a motor vehicle has at least one light source connected to a circuit, wherein the at least one light source has a light output that is adjustable according to external light conditions in order to prevent blinding of the driver in a following vehicle and in order to ensure proper light intensity during daytime operation.
    Type: Grant
    Filed: April 10, 1998
    Date of Patent: January 18, 2000
    Assignee: Reitter & Schefenacker GmbH & Co. KG
    Inventors: Helmut Eberspacher, Winfried Hardy Gauch, Helmut Haf, Wolfgang Robel
  • Circuit for protecting electrically operated lighting elements, especially LEDs, for illumination or signaling purposes
    Patent number: 5939839
    Abstract: A circuit for protecting electrically operated lighting elements used for illumination or signaling has at least one PTC resistor connected serially upstream of the lighting element. In another embodiment, the circuit has a self-regulating current supply connected serially upstream of the lighting element. In yet another embodiment, the circuit has a down convertor connected serially upstream of the lighting element.
    Type: Grant
    Filed: December 1, 1997
    Date of Patent: August 17, 1999
    Assignee: Reitter & Schefenacker GmbH & Co. KG
    Inventors: Wolfgang Robel, Achim Weiss, Helmut Haf, Winfried Hardy Gauch