Patents by Inventor Hansjurgen Strutt

Hansjurgen Strutt 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 assembling a brush having bristles
    Patent number: 5474366
    Abstract: An apparatus and method for making thermoplastic brushes includes a first unit for injection molding an anchoring plate having through openings for tufts of bristles. The apparatus further includes an arrangement for inserting the tufts in the openings so that an end portion of each tuft is adjacent a first side of the anchoring plate and a major portion of each tuft projects beyond the opposite second side of the anchoring plate. A heating plate is provided to form welds between the end portions of the tufts and the anchoring plate, and between the individual bristles of the tufts. This seals the through openings at the first side of the anchoring plate. The apparatus additionally includes a second unit for injection molding a covering member over the first side of the anchoring plate. To make a brush, the anchoring plate is injection molded using the first unit and the tufts are welded to the anchoring plate.
    Type: Grant
    Filed: January 24, 1994
    Date of Patent: December 12, 1995
    Assignee: Anton Zahoransky
    Inventors: Hansjurgen Strutt, Ulrich Zahoransky