Patents by Inventor Johan A. Duijve

Johan A. Duijve 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).

  • Method and apparatus for supplying material in web form
    Patent number: 5036359
    Abstract: Method and apparatus for determining the width and location of stored rolls of receiving material in web form, in which an unrolled initial strip of an inserted roll is fed past a measuring device disposed along a transport path provided jointly for receiving material fed from the rolls. The measuring device determines the width of a roll of web material when its initial strip is cut off by a cutting device, and the measured value together with a data item representative of the storage location of that roll being stored in a memory.
    Type: Grant
    Filed: December 19, 1989
    Date of Patent: July 30, 1991
    Assignee: Oce-Nederland B.V.
    Inventors: Johan A. Duijve, Gijsbertus Velraeds