Patents by Inventor Heinz Johanns

Heinz Johanns 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).

  • Process and an apparatus for loading a cassette with an endless roll
    Patent number: 4179079
    Abstract: The invention relates to a method and an apparatus for automatically loading a cassette with an endless roll of loosely wound film from a cut length of film strip. The film strip is led after deflection into a stationary track which is offset from the supply plane by a film width and corresponds to the path of the film guide passage of a cassette. The film is loosely wound onto a roll from the outside to the inside in a rotating winding chamber. Upon completion of the winding process the film is cut off and the free end is spliced with the other end to form an endless roll. Then the roll is pushed from the winding chamber into the cassette by means of an ejector.
    Type: Grant
    Filed: July 19, 1978
    Date of Patent: December 18, 1979
    Assignee: AGFA-Gevaert A.G.
    Inventor: Heinz Johanns
  • Loading a cassette with an endless roll of strip form material
    Patent number: 4139163
    Abstract: The invention relates to a method and device for loading a cassette with an endless roll of strip form material from sections of a finite feed spool.
    Type: Grant
    Filed: July 15, 1977
    Date of Patent: February 13, 1979
    Assignee: AGFA-Gevaert AG
    Inventors: Walter Tabel, Heinz Johanns