Patents by Inventor DeForest Bishop

DeForest Bishop 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: 6811629
    Abstract: A cleaning and polishing pad including densely packed fibrillated face yarns on one side and an opposite polishing side, which alternatively may be a resilient, textured surface, or an open-celled sponge. The pad is constructed of all synthetic materials using conventional carpet manufacturing techniques. Synthetic fibrillated face yarns are tufted into a primary back which may be a woven polypropylene product, scrim, sponge or other sheet material. The face yarns include yarns of at least two (2) deniers, tightly packed, to provide both a soft and hard bristle face with the yarns cooperating to produce a non-abrasive scrubbing pad. Optionally, a secondary synthetic substrate, such as, for example, a latex substrate, applied to the backside of the tufted product provides a secondary back and a means of locking the yarns into place in the primary backing. Either the secondary back or a separate polishing substrate adhered to the secondary back also forms a polishing or non-abrasive cleaning surface.
    Type: Grant
    Filed: July 5, 2002
    Date of Patent: November 2, 2004
    Inventor: DeForest Bishop
  • Publication number: 20020184723
    Abstract: A cleaning and polishing pad including densely packed fibrillated face yarns on one side and an opposite polishing side, which alternatively may be a resilient, textured surface, or an open-celled sponge. The pad is constructed of all synthetic materials using conventional carpet manufacturing techniques. Synthetic fibrillated face yarns are tufted into a primary back which may be a woven polypropylene product, scrim, sponge or other sheet material. The face yarns include yarns of at least two (2) deniers, tightly packed, to provide both a soft and hard bristle face with the yarns cooperating to produce a non-abrasive scrubbing pad. Optionally, a secondary synthetic substrate, such as, for example, a latex substrate, applied to the backside of the tufted product provides a secondary back and a means of locking the yarns into place in the primary backing. Either the secondary back or a separate polishing substrate adhered to the secondary back also forms a polishing or non-abrasive cleaning surface.
    Type: Application
    Filed: July 5, 2002
    Publication date: December 12, 2002
    Inventor: DeForest Bishop
  • Patent number: 6453502
    Abstract: A cleaning and polishing pad including densely packed fibrillated face yarns on one side and an opposite polishing side, which alternatively may be a resilient, textured surface, or an open-celled sponge. The pad is constructed of all synthetic materials using conventional carpet manufacturing techniques. Synthetic fibrillated face yarns are tufted into a primary back which may be a woven polypropylene product, scrim, sponge or other sheet material. The face yarns include yarns of at least two (2) deniers, tightly packed, to provide both a soft and hard bristle face with the yarns cooperating to produce a non-abrasive scrubbing pad. Optionally, a secondary synthetic substrate, such as, for example, a latex substrate, applied to the backside of the tufted product provides a secondary back and a means of locking the yarns into place in the primary backing. Either the secondary back or a separate polishing substrate adhered to the secondary back also forms a polishing or non-abrasive cleaning surface.
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: September 24, 2002
    Inventor: DeForest Bishop