Patents by Inventor Guenter Czapla

Guenter Czapla 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).

  • Device for winding strips of photographic film
    Patent number: 5564642
    Abstract: A device for winding strips of photographic film inside a housing. A film-guide slot opens into the housing's approximately cylindrical interior. A film reel rotates freely in the housing interior without a positive drive and demarcates, in conjunction with the inner surface of the housing, a more or less annular film-guide channel. The film-guide slot opens more or less tangentially into the interior channel.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: October 15, 1996
    Assignee: Agfa Geavert
    Inventors: Josef Auer, Guenter Czapla