Patents by Inventor Andreas Krappweis

Andreas Krappweis 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: 5769947
    Abstract: Apparatus is provided for applying glue or a similar adhesive onto a substrate such as a paper web. It comprises a nozzle plate (20) with exit openings (29) with a small diameter, which are arranged in at least two rows (32,33), staggered closely behind one another in the transport direction (4). The rows are also transversely offset with respect to each other such that the outlet openings of one row (33) are aligned with the spaces (37) defined between the outlet openings of another row (32). In this manner, side edge portions (47) of the adhesive issued from the outlet openings of the one row (33) contact and merge with the side edge portions (47) of the adhesive issued from the outlet openings of the other row (32) whereby a continuum of adhesive is produced.
    Type: Grant
    Filed: October 23, 1995
    Date of Patent: June 23, 1998
    Assignee: ITW Dynatech GmbH Klebetechnik
    Inventor: Andreas Krappweis