Patents by Inventor Bastiaan Bernard Boele Eertink

Bastiaan Bernard Boele Eertink 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).

  • Detector circuit for electrophotographic copier
    Patent number: 4095887
    Abstract: In electrophotographic copying apparatus utilizing a photoconductive belt having markings regularly spaced apart on its back side for control of the copying operations by moving past a detector comprising a light source and a photoelement to generate signal pulses, the detector is made to perform reliably notwithstanding variations of the sensitivity of the photoelement, or of the light emission, by the provision of a circuit for emitting a detector signal proportional to the amount of light sensed by the photoelement together with a signal modifying circuit that maintains an output signal level corresponding to the average value of the detector signal and a control circuit responsive to the output signal level for controlling the intensity of the light source.
    Type: Grant
    Filed: August 2, 1976
    Date of Patent: June 20, 1978
    Assignee: Oce-van der Grinten N.V.
    Inventors: Jozef Marie van Herten, Bastiaan Bernard Boele Eertink