Patents by Inventor Gunther Maurischat

Gunther Maurischat 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).

  • Electrostatic copying apparatus
    Patent number: 4231319
    Abstract: A cascade-type developing unit for an electrostatic copying apparatus is disclosed. A mixture of toner and carrier particles circulates in the unit and its particles become electrostatically charged due to electrification. An arrangement is provided for limiting the charge of the particles to user-selectable values.
    Type: Grant
    Filed: April 4, 1978
    Date of Patent: November 4, 1980
    Assignee: AGFA-Gevaert, A.G.
    Inventors: Gottfried Waibel, Gunther Maurischat, Heinz Webersik
  • Electrostatic copying machine utilizing flash discharge lamp for illuminating original and/or fixing toner image
    Patent number: 4183654
    Abstract: The flash discharge lamp is energized by the discharge of a battery of flash condensors. When an attempt is made to gain access to the flash condensors, these are automatically and quickly discharged through current-limiting resistors, to preclude the danger of electrocution. The fixing station of the copying machine, including the flash discharge lamp, the battery of flash condensors, the transport rollers which transport copying medium through the fixing station and almost all of the electronic control circuitry of the fixing station, are provided on a single housing, removable from the copying machine as a pull-out unit.
    Type: Grant
    Filed: December 30, 1977
    Date of Patent: January 15, 1980
    Assignee: AGFA-Gevaert, A.G.
    Inventors: Fritz Waschk, Heinz Webersik, Gunther Maurischat, Walter Schott