Patents by Inventor John T. Bright

John T. Bright 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).

  • Method for positioning and stabilizing a concrete slab
    Patent number: 4591466
    Abstract: A method of lifting and stabilizing a concrete slab having an opening therein in which a plate is attached to the top surface of the slab, the plate having an opening coinciding with the opening in the slab, a hydraulic jack having a downwardly extending piston is removeably secured to the plate and a series of tubular shafts are forced downwardly through the opening in the plate and the slab to penetrate the earth beneath the slab and apply lifting force. When the slab has been lifted to the desired elevation, grout, such as a concrete slurry, can be injected below the slab so that the slab is stabilized in the selected elevational position. After the plate is removed the hole in the slab is filled.
    Type: Grant
    Filed: December 12, 1984
    Date of Patent: May 27, 1986
    Assignee: Foundation Control Systems
    Inventors: Clarence L. Murray, John T. Bright
  • Apparatus for positioning and stabilizing a concrete slab
    Patent number: 4507069
    Abstract: A method of lifting and stabilizing a concrete slab having an opening therein in which a plate is attached to the top surface of the slab, the plate having an opening coinciding with the opening in the slab, a hydraulic jack having a downwardly extending piston is removeably secured to the plate and a series of tubular shafts are forced downwardly through the opening in the plate and the slab to penetrate the earth beneath the slab and apply lifting force. When the slab has been lifted to the desired elevation, grout, such as a concrete slurry, can be injected below the slab so that the slab is stabilized in the selected elevational position. After the plate is removed the hole in the slab is filled.
    Type: Grant
    Filed: October 20, 1983
    Date of Patent: March 26, 1985
    Assignee: Foundation Control Systems, Inc.
    Inventors: Clarence L. Murray, John T. Bright