Patents Assigned to Cathodic Engineering Equipment Co., Inc.
  • 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.