Patents by Inventor Richard W. Everson

Richard W. Everson 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: 4811447
    Abstract: A sweeper bristle element especially adapted for the use in a broom machine for a railway road bed or track. The sweeper bristle elements of the broom machine have a solid rubber core and layers of rubber coated fabric encircling the solid rubber core. The fabric in the rubber coated layers provide sufficient strength to resist breakage during cleaning and also provides sufficient flexibility to improve the wear of the bristle elements. The fabric is spiral wound with a thin layer of nylon material and thence cured to form an integral and compact bristle element. The nylon material is then unwrapped and the bristle element is cut into a plurality of small length bristle elements.
    Type: Grant
    Filed: July 28, 1986
    Date of Patent: March 14, 1989
    Inventor: Richard W. Everson
  • Patent number: 4805964
    Abstract: A sweeper bristle element especially adapted for the use in a broom machine for a railway road bed or track. The sweeper bristle elements of the broom machine have a solid rubber core and layers of rubber coated fabric encircling the solid rubber core. The fabric in the rubber coated layers provide sufficient strength to resist breakage during cleaning and also provides sufficient flexibility to improve the wear of the bristle elements. The fabric is spiral wound with a thin layer of nylon material and then cured to form an integral and compact bristle element. The nylon material is then unwrapped and the bristle element is cut into a plurality of small length bristle elements.
    Type: Grant
    Filed: February 16, 1988
    Date of Patent: February 21, 1989
    Assignee: Thermoid, Inc.
    Inventor: Richard W. Everson