Patents by Inventor Roy S. Hamilton

Roy S. Hamilton 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).

  • Flexible partition
    Patent number: 5524693
    Abstract: A flexible partition suspended from a ceiling of a gymnasium or the like. The flexible partition includes a drive cylinder which extends the length of and intermediate the curtain forming the partition. The cylinder is provided with a drive motor internally of the cylinder, and a reaction device is provided externally of the curtain such that the motor device when activated will drive the cylinder to wind up the upper and lower portions of the curtain. The upper and lower portions of the curtain are attached at diametrically opposed locations on the cylinder, and hook and loop type fastening strips are provided on the edges of the curtain and the side walls so as to seal the curtain against noise or dust.
    Type: Grant
    Filed: May 1, 1995
    Date of Patent: June 11, 1996
    Inventor: Roy S. Hamilton
  • Flexible partition
    Patent number: 5429171
    Abstract: A flexible partition suspended from a ceiling of a gymnasium or the like. The flexible partition includes a drive cylinder which extends the length of and intermediate the curtain forming the partition. The cylinder is provided with a drive motor internally of the cylinder, and a reaction device is provided externally of the curtain such that the motor device when activated will drive the cylinder to wind up the upper and lower portions of the curtain. The upper and lower portions of the curtain are attached at diametrically opposed locations on the cylinder, and hook and loop type fastening strips are provided on the edges of the curtain and the side walls so as to seal the curtain against noise or dust.
    Type: Grant
    Filed: May 24, 1993
    Date of Patent: July 4, 1995
    Inventor: Roy S. Hamilton