Patents by Inventor Robert J. Booth

Robert J. Booth 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: 5098025
    Abstract: A process for recycling an asphalt-containing waste product, that comprises breaking up an asphalt-containing waste product in a liquid to produce a wet waste product mixture having particles no greater in size than 10 mesh and at least some of which are asphalt-containing particles. Thereafter the wet waste product mixture is directly used to produce a new asphalt product. New asphalt products are produced entirely or partly from the wet waste product mixture.
    Type: Grant
    Filed: March 4, 1991
    Date of Patent: March 24, 1992
    Assignee: Northern Globe Building Materials, Inc.
    Inventors: Michel P. Drouin, Khalid S. Jasim, Robert J. Booth, Bertram E. Barnswell
  • Patent number: 4952268
    Abstract: The present invention relates to an apparatus and method and uses a thin, yet strong plastic film as the intermediate layer for the waterproofing material and the film has a plurality of perforations therein. The film is highly resistant to crack propagation, and acts as a barrier to crack propagation between adjacent asphalt layers, thus providing superior protection from the elements. The asphalt layers are interconnected with each other through the perforations in the polyester support layer. Because of the strength of the polyester film, only a very thin layer of polyester is necessary and this results in a substantial cost savings. As an alternative to coating, it is possible to extrude or laminate the asphalt onto the PET film. Also a layer of asphalt may be applied only to one side of said film and extruded through the perforations with heads on the columns so formed to attach the asphalt to the film.
    Type: Grant
    Filed: May 2, 1989
    Date of Patent: August 28, 1990
    Assignee: Devtech Labs, Inc.
    Inventors: Martin H. Beck, Louis D. Tacito, Warren Arseneau, Robert J. Booth, Khalid Jasim