Patents by Inventor Gerardus J. W. H. Gudden

Gerardus J. W. H. Gudden 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).

  • Feed unit for a detergent and packaging thereof
    Patent number: 4397391
    Abstract: The invention relates to an imposed means of ensuring that the sealing edge(s) of a flat, for instance rectangular, detergent-containing sachets is (are) kept closed. The sealing edge is of the type which is sealed with such a glue that it opens in the water of the washing machine at a temperature above room temperature. The improved means consists in that said sealing edges of the sachets may be bent as they are packaged in a box, as a result of which premature opening of the sachets is prevented during transport or after they have been introduced into the washing machine.
    Type: Grant
    Filed: April 27, 1981
    Date of Patent: August 9, 1983
    Assignee: Akzo nv
    Inventors: Emery G. P. Cornelissens, Gerardus J. W. H. Gudden