Patents by Inventor Henry Crivelli

Henry Crivelli 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).

  • Precast surface paving overlay comprising rubber crumbs and clay particles
    Patent number: 5468539
    Abstract: A rubber tire recycling process comprises the steps of granulating black rubber tire side walls and treads and granulating white rubber tire side walls to form coarse rubber crumbs, mixing the coarse rubber crumbs with fine clay particles to form a closely packed mixture, thoroughly wetting the surfaces of the coarse particles with a uncured EPDM rubber to provide a fluid, casting the fluid into a sheet-like configuration, and curing the sheet-like configuration under sufficient heat and for a sufficient time to provide an environmentally compatible paver for outdoor or indoor surfaces.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: November 21, 1995
    Inventor: Henry Crivelli