Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7318889 | Apparatus, system and method for extending the life of sacrificial anodes on cathodic protection systems An apparatus, system, method and computer program product directed to controlling corrosion of a conductive structure in contact with a corrosive environment and electrically connected to one or more anodes, wherein the anodes are less noble than the conductive stru... | 01/15/2008 |
| 7189319 | Axial current meter for in-situ continuous monitoring of corrosion and cathodic protection current First and second axial current meters (ACM) are mechanically connected to a well casing just above and below a corrosive zone and a master axial current meter (MACM) is connected to the casing at the earth's surface, the MACM periodically obtaining measurements of a... | 03/13/2007 |
| 7169288 | Methods and systems of cathodic protection for metallic enclosures Systems and methods of cathodic protection. The system includes a metallic housing, a backplane situated within the metallic housing, a cathodic protection card coupled to the backplane and a permanent anode, external to the metallic housing, coupled to the cathodic... | 01/30/2007 |
| 7029569 | Semiconductive corrosion and fouling control apparatus, system, and method An apparatus, system, method and computer program product directed to controlling corrosion of a conductive structure in contact with a corrosive environment and coated with a semiconductive coating, where the corrosion is controlled by a controllable filter and a c... | 04/18/2006 |
| 6811681 | Semiconductive corrosion and fouling control apparatus, system, and method An apparatus, system, method and computer program product directed to controlling corrosion of a conductive structure in contact with a corrosive environment and coated with a semiconductive coating, where the corrosion is controlled by a controllable filter and a c... | 11/02/2004 |
| 6423208 | Method and apparatus for lead contamination control Control of lead contamination in residential water supplies is accomplished by cathodic protection of lead-containing piping and lead-containing fixtures. Specifically, a partially insulated wire is inserted into lead-containing service lateral piping. Ap... | 07/23/2002 |
| 6331243 | Process and apparatus for preventing oxidation of metal An apparatus for prevention of corrosion in metal objects uses a capacitively coupled fastener or pad attached to a metal body being protected from corrosion. The metal body and the negative terminal of a source of DC voltage (battery) are grounded. The p... | 12/18/2001 |
| 6120675 | Electrochemical method and electrode An electrochemical electrode of a tube of porous titanium suboxide with a contact connection to an electrical supply.... | 09/19/2000 |
| 6103097 | Method and apparatus for lead contamination control Control of lead contamination in residential water supplies is accomplished by cathodic protection of lead-containing piping and lead-containing fixtures. Specifically, a partially insulated wire is inserted into lead-containing service lateral piping. Ap... | 08/15/2000 |
| 5840164 | Galvanic isolator A galvanic isolator to protect against galvanic corrosion of a submersible metal marine drive. The galvanic isolator is positioned between shore ground and boat ground to prevent the flow of destructive galvanic currents between the shore ground and the b... | 11/24/1998 |
| 5627414 | Automatic marine cathodic protection system using galvanic anodes An automatic system uses sacrificial galvanic anodes to to provide a controlled and optimum amount of cathodic protection against galvanic corrosion on submerged metal parts. Intermittently pulsed control circuitry enables an electro-mechanical servo syst... | 05/06/1997 |
| 5139634 | Method of use of dual bed cathodic protection system with automatic controls This invention relates to a dual bed cathodic protection system with automatic controls and method of use utilizing an impressed cathodic protection anode assembly powered through a solar power supply in conjunction with a sacrificial cathodic protection ... | 08/18/1992 |
| 5023928 | Apparatus for reducing the current drain on the sacrificial anode in a water heater The sacrificial anode in an electrically-heated water heater is protected against excessive current drain and premature dissolution resulting from the cathodic effect of the metal jacket on the heating element by a protective device which provides an effe... | 06/11/1991 |
| 4780189 | Electronic control circuit for a cathodic protection system An electronic control circuit for a vehicle cathodic protection system is disclosed. A battery of the vehicle is utilized to supply electrical energy to the circuit. The circuit includes a first voltage comparator which compares the voltage level of the v... | 10/25/1988 |
| 4549948 | Sacrificial anode composition A composition which is particularly suitable for providing cathodic protection of metal structures is disclosed. The composition comprises a major amount of particulate anode material and a minor amount of a thixotropic carrier material. A method of using... | 10/29/1985 |
| 4381981 | Sacrificial cathodic protection system Corrosion protection is provided to a metallic structure by a sacrificial anode system. A current control element is used to achieve fast and adequate corrosion protection under changing conditions, while excess current flow is minimized to extend anode l... | 05/03/1983 |
| 4251343 | Sacrificial anode apparatus A sacrificial anode apparatus for providing cathodic protection of metal structures, a portion of which is in water is disclosed. The anode apparatus comprises: (a) a perforated subsurface container for anode material, (b) sacrificial anode material in continu... | 02/17/1981 |
