David H Kroon
Engineers in Spring, TX

5065893, Nov 19, 1991

Mar 15, 1991

7/669934

David H. Kroon - Spring TX
Gary Goldsmith - Conroe TX
Michael K. Baach - Spring TX
James B. Bushman - Medina OH

Corrpro Companies Inc. - Medina OH

B65D 142

220565

The invention relates to a cathodic protection system for an above-ground storage tank having a metal bottom, both new and retrofitted bottoms. A leak containing dielectric safety membrane is spaced a short distance below and extends beneath the tank bottom generally parallel thereto forming a narrow envelope. Compacted electrolytic conductor is positioned between the membrane and the tank bottom supporting the tank bottom embedding a horizontally disposed cathodic protection anode, the anode being in the form of a matrix or grid of interconnected titanium bars and ribbons. A reticulate dielectric insulator may be embedded in the electrolytic conductor and positioned directly above the anode and such insulator is operable to keep any portion of the anode from contacting the tank bottom and to maintain a generally uniform spacing between the anode and tank bottom. The ribbons extend transversely of the bars and are spot welded on uniform centers to bars on diameters or major chords of a circular tank bottom. A low profile connection is provided between the bars and power feeds to a rectifier, and for large tank bottoms a multiplicity of such connections strategically spaced are provided.

5340455, Aug 23, 1994

Jan 22, 1993

8/007537

David H. Kroon - Spring TX
Michael K. Baach - Parma OH

Corrpro Companies, Inc. - Medina OH

C23F 1300

204196

The invention relates to a cathodic protection system for above-ground storage tanks having metal bottoms, either new or retrofitted bottoms. A leak containing dielectric safety membrane is spaced a short distance below and extends beneath the tank bottom generally parallel thereto forming a narrow envelope. Compacted electrolytic conductor material is positioned between the membrane and the tank bottom supporting the tank bottom embedding a horizontally disposed cathodic protection anode, the anode being in the form of a matrix, maze or grid of interconnected titanium wires, or wires and ribbons or bars. A reticulate or open dielectric insulator may be embedded in the electrolytic conductor and positioned directly above the anode and such insulator is operable to keep any portion of the anode from contacting the tank bottom and to maintain a generally uniform spacing between the anode and tank bottom. The wires may extend transversely of the bars or ribbon and are spot welded or mechanically connected on uniform centers to such bars or ribbons on diameters or major chords of a circular tank bottom. A low profile connection is provided between the bars or wires and power feeds to a rectifier, and for large tank bottoms a multiplicity of such connections strategically spaced are provided.