Patents by Inventor Karl U. Hairston

Karl U. Hairston 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).

  • Temporary material installation support device and method of use thereof
    Patent number: 5655337
    Abstract: The present invention relates to a drywall support device. More particularly, this invention relates to a drywall support device for temporarily attaching a sheet of drywall to a ceiling for easier permanent attachment by using a lift system to raise the sheet of drywall to the ceiling. This device is an elongated support which allows for "hands-free" permanent attachment of sheets of material to both conventional or irregularly sloped ceilings. The device has three essential components: (1) a pair of ceiling joist support brackets; (2) an elevatable drywall support; and (3) a threaded screw-type mechanism with a handle to raise the elevatable support to a desired elevation.
    Type: Grant
    Filed: September 18, 1995
    Date of Patent: August 12, 1997
    Inventors: Carroll D. Bryant, Karl U. Hairston