Patents by Inventor Wilhelm Hamacher

Wilhelm Hamacher 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).

  • Reinforcement cords for elastomeric products
    Patent number: 5473877
    Abstract: Reinforcement cord for elastomeric products, in particular reinforcement cords, for use in vehicle tires comprising inner filaments (1) and at least one outer filament (2) wound helically around the inner filaments (1), characterised in that at least the outer filament (2) has a flattened cross-section and is so dimensioned and positioned that it substantially co-determines the mechanical characteristics of the reinforcement cord via line-like and/or area contact locations with the inner filaments (1).
    Type: Grant
    Filed: March 10, 1995
    Date of Patent: December 12, 1995
    Assignee: SP Reifenwerke GmbH
    Inventor: Wilhelm Hamacher