Patents by Inventor David Toft

David Toft 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).

  • Leather belts or aprons for textile machines
    Patent number: 4061803
    Abstract: The invention relates to the production of leather belts and aprons for textile machines in which the natural smooth and relatively non-fibrous grain surface of the leather is removed to expose the natural inner flesh surface and subjecting the surface to mechanical treatment by setting or rolling to compact the surface and impregnating the surface with a polymeric substance to consolidate the surface layer to produce a belt or apron with a smooth non-tacky surface.
    Type: Grant
    Filed: March 9, 1976
    Date of Patent: December 6, 1977
    Inventors: Wallace Ronald Brooksbank, David Toft