Patents by Inventor Holger Buckwald

Holger Buckwald 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 of making a swelling cable wrap
    Patent number: 5298284
    Abstract: A cable wrap which swells upon contact with water is made by coating one side of a nonwoven fabric support with a polyvinyl alcohol binding agent and then with a superabsorber powder, drying the coated fabric between contact surfaces, printing a polyacrylate binding agent plaste onto the superabsorber surface, and then drying the coated fabric. Alternatively, the cable wrap can be made by printing a polyacrylate binding agent paste onto a nonwoven fabric support, applying a polyvinyl alcohol binding agent onto the polyacrylate binding agent paste, sprinkling superabsorber powder onto the polyvinyl alcohol binding agent, and drying the coated fabric between contact surfaces.
    Type: Grant
    Filed: October 14, 1992
    Date of Patent: March 29, 1994
    Assignee: Carl Freudenberg Firma
    Inventors: Holger Buckwald, Ingrid Schaffert, Werner Schafer