Patents by Inventor Robert L. Holland

Robert L. Holland 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).

  • Bleacher seat cap installation tool and methods of use
    Patent number: 6182344
    Abstract: A bleacher seat cap installation tool is provided that has a first guide surface that slides along an edge of the seat board of the bleacher seat to be retrofit, and a second guide surface that guides a free end of a bleacher seat cap into position. The tool enables a single installer to install a bleacher seat cap quickly and easily, while avoiding injury or marring of the exterior surface of the bleacher seat cap.
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: February 6, 2001
    Inventor: Robert L. Holland
  • Bleacher seat cap installation tool
    Patent number: 6032346
    Abstract: A bleacher seat cap installation tool is provided that has a first guide surface that slides along an edge of the seat board of the bleacher seat to be retrofit, and a second guide surface that guides a free end of a bleacher seat cap into position. The tool enables a single installer to install a bleacher seat cap quickly and easily, while avoiding injury or marring of the exterior surface of the bleacher seat cap.
    Type: Grant
    Filed: February 18, 1998
    Date of Patent: March 7, 2000
    Inventor: Robert L. Holland
  • Well safety valve
    Patent number: 4354554
    Abstract: A wire line removable well safety valve in an oil and gas well completion design including a tubing string, a well packer around the tubing string sealing with the well casing, and a submergible well pump on the tubing string below the packer. The safety valve controls flow of pumped well fluids through the tubing string, directs separated gas into the casing annulus around the tubing string above the packer, and shuts off the flow of pumped fluids and separated gas to the surface while permitting recirculation of pumped well fluids between the annulus and tubing string below the packer.
    Type: Grant
    Filed: April 21, 1980
    Date of Patent: October 19, 1982
    Assignee: Otis Engineering Corporation
    Inventors: Michael B. Calhoun, Robert L. Holland, Jr., Paul D. Scott