Patents by Inventor Prithwis Basu

Prithwis Basu 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).

  • Patent number: 4096020
    Abstract: Apparatus for attaching adhesive-coated bands to damaged portions of photographic films or the like has a suction drum which attracts the leader of an adhesive tape and cooperates with a heated wire to sever the leader and to thus form a succession of adhesive-coated bands which are attached to damaged portions of films. The attachment of bands can take place by moving the damaged portion of a film against the drum and/or by moving the drum against the damaged portion of the film. If the film is to be coated at both sides, it is caused to pass between two drums which can be located directly opposite each other or are spaced apart, as considered in the direction of lengthwise movement of the film.
    Type: Grant
    Filed: November 13, 1973
    Date of Patent: June 20, 1978
    Assignee: AGFA-Gevaert AG
    Inventors: Prithwis Basu, Gunter Neumann, Gunther Kaiser