Patents by Inventor Joseph F. Tatum, Jr.

Joseph F. Tatum, Jr. 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).

  • Ground electrode backfill
    Patent number: 5080773
    Abstract: A low resistance non-permeable backfill especially for use in vertical anode beds for the cathodic protection of subsurface metallic structures includes a mixture of portland cement, calcined fluid petroleum coke, micro-size carbon rods and high structure carbon black.
    Type: Grant
    Filed: April 5, 1991
    Date of Patent: January 14, 1992
    Assignee: Cathodic Engineering Equipment Co., Inc.
    Inventors: Joseph F. Tatum, Jr., Thomas H. Lewis, Jr.
  • Ground electrode backfill composition, anode bed
    Patent number: 5026508
    Abstract: A low resistance non-permeable backfill especially for use in vertical anode beds for the cathodic protection of subsurface metallic structures includes a mixture of portland cement, calcined fluid petroleum coke, micro-size carbon rods and high structure carbon black mixed with water and pumped as a high density fluidized suspension into the anode bed, particularly around the casing of a deep anode bed of the general type described in U.S. Pat. No. 3,725,699 to Tatum.
    Type: Grant
    Filed: May 11, 1990
    Date of Patent: June 25, 1991
    Assignee: Cathodic Engineering Equipment Co., Inc.
    Inventors: Joseph F. Tatum, Jr., Thomas H. Lewis, Jr.
  • Electrical grounding system
    Patent number: 4994629
    Abstract: An electrical ground system as a metal conductor surrounded by a composition comprising a mixture of portland cement, sized calcined fluid petroleum coke, micro-carbon rods and carbon black.
    Type: Grant
    Filed: July 10, 1990
    Date of Patent: February 19, 1991
    Assignee: Cathodic Engineering Equipment Co., Inc.
    Inventors: Joseph F. Tatum, Jr., Thomas H. Lewis, Jr.
  • Ground electrode backfill composition, anode bed and apparatus
    Patent number: 4786388
    Abstract: A low resistance non-permeable backfill especially for use in vertical anode beds for cathodic protection of subsurface metallic structures includes a mixture of carbonaceous materials, naturally occurring graphite lubricants, additives to reduce the apparent viscosity of the slurry and portland cement mixed with water and pumped as a high density fluidized suspension into the anode bed, particularly around the casing of a deep anode bed of the general type described in United States patent to Tatum U.S. Pat. No. 3,725,669.
    Type: Grant
    Filed: September 14, 1987
    Date of Patent: November 22, 1988
    Assignee: Cathodic Engineering Equipment Company
    Inventor: Joseph F. Tatum, Jr.