Patents Examined by Stephone B. Alen
  • Process and apparatus for the automatic non-contact surface inspection of cylindrical parts
    Patent number: 5012117
    Abstract: A process and an apparatus for its realization are provided for an automatic non-contact surface inspection of cylindrical parts. The parts under inspection are imparted a rotary motion about their axis of symmetry and are exposed to largely parallel light whose diffused portion reflected by the surface of the parts is evaluated optoelectronically.
    Type: Grant
    Filed: September 7, 1989
    Date of Patent: April 30, 1991
    Assignee: Alfred Teves GmbH
    Inventors: Nandor Karafa, Lutz Liebers