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US 8,474,381 B2Granted
Non-explosive power source for actuating a subsurface tool
AssigneeRobertson Intellectual Properties, LLC
InventorsDouglas J. Streibich, Mark Lancaster, Michael C. Robertson
Life of this patent
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Abstract
A power source for applying a force to an object includes thermite in a quantity sufficient to generate a thermite reaction, and a gas producing substance disposed in association with the thermite. The gas producing substance produces a gas when the thermite reaction. The thermite reaction, the gas, or combinations thereof provide a force to the object.
Claims20
A power source for actuating a subsurface tool, the power source comprising:
- a quantity of thermite sufficient to generate a thermite reaction when heated in excess of an ignition temperature;
- and
- a polymer disposed in association with the thermite, wherein the polymer produces a gas when the thermite reaction occurs, wherein the gas slows the thermite reaction, wherein pressure produced by the thermite reaction, the gas, or combinations thereof, is applied to the subsurface tool to actuate the subsurface tool, and wherein applying the pressure produced by the thermite reaction, the gas, or combinations thereof to the subsurface tool comprises applying the pressure produced by the thermite reaction, the gas, or combinations thereof to a movable member, causing the movable member to move from a first position to a second position.
A method for applying a force to an object, the method comprising the steps of:
- providing a power source into association with a movable member, wherein the power source comprises:
- a quantity of thermite sufficient to generate a thermite reaction when heated in excess of an ignition temperature, and a gas producing substance disposed in association with the thermite and adapted to produce a gas when the thermite reaction occurs;
- and
- heating the thermite to or in excess of the ignition temperature, thereby generating the thermite reaction, wherein the gas producing substance produces the gas when the thermite reaction occurs, and wherein the gas, the thermite reaction, or combinations thereof produces a pressure, causing the movable member to move.
1 more element
Dependencies are inferred from the claim text.