Patents by Inventor Karl R. Dehn

Karl R. Dehn 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: 5171388
    Abstract: An apparatus and method are disclosed for securing elastic to a flexible backing for use in catamenial pads. The apparatus includes means for feeding the backing sheet onto a first drum having a plurality of surface grooves formed therein. The backing sheet is pulled into each of the grooves such as by a vacuum. A strip of elastic is then placed across each of the grooves and anchored at its respective ends. The backing sheet is then drawn off of the drum and extended so that the elastic is stretched to overlay the backing sheet. The apparatus further includes means for adhering portions of the elastic intermediate the anchored ends to the backing sheet while the elastic is in its extended position. The method for applying the elastic material to the backing sheet uses the apparatus discussed above.
    Type: Grant
    Filed: April 6, 1990
    Date of Patent: December 15, 1992
    Assignee: Kimberly-Clark Corp.
    Inventors: John W. Hoffman, Karl R. Dehn
  • Patent number: 4900384
    Abstract: An apparatus for forming at least one elasticized flap section on a substantially continuous web comprises a web supplying mechanism for delivering a moving, substantially continuous web having first and second, oppositely-facing major surfaces, and having first and second side edges. An elastic supplying mechanism delivers at least one elastic member into contact with the web, and an attaching mechanism secures the elastic member to the web. A first folding mechanism bends the web along a primary foldline located inboard from the first side edge of the web to define at least one primary panel portion of the web. The folding mechanism operably moves the primary panel portion to overlie the first major web surface with the elastic member located between the primary panel portion and the first major web surface.
    Type: Grant
    Filed: June 15, 1988
    Date of Patent: February 13, 1990
    Assignee: Kimberly-Clark Corporation
    Inventors: Donald J. Sanders, Keith G. Bellin, Karl R. Dehn