Coating system for tubular gripping components
AssigneeFrank's International, LLC
InventorsBrennan S. Domec, Jeremy Richard Angelle
Life of this patent
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Abstract
A gripping tool includes a gripping element and at least one gripping surface formed on the gripping element. The at least one gripping surface includes a plurality of teeth extending from the gripping element an outer layer. A method to surface process a gripping surface of a gripping tool includes providing the gripping surface in an environment comprising a source of additive material and heating the gripping surface at a temperature and a time to diffuse the additive material a depth into the gripping surface to form a diffusion layer.
Claims19
A gripping tool comprising:
- a gripping element;
- at least one gripping surface formed on the gripping element wherein the at least one gripping surface comprises:
- a plurality of teeth extending from the gripping element;
- an outermost layer extending a depth from an outer surface of the gripping element, wherein the outermost layer is created by the diffusion or deposition of elements selected from the group consisting of chromium, carbon, nitrogen, boron, cobalt, tungsten, molybdenum, nickel, copper, aluminum, silicon, titanium, or vanadium, alone or in combinations thereof;
- an intermediate layer extending a depth from the inner surface of the outermost layer of the gripping element, wherein the intermediate layer is created by the diffusion of elements selected from the group consisting of boron, chromium, carbon, nitrogen, cobalt, tungsten, molybdenum, nickel, copper, aluminum, silicon, titanium, or vanadium, alone or in combinations thereof;
- an innermost layer extending a depth from the inner surface of the intermediate layer of the gripping element to a substrate material of the gripping surface, wherein the innermost layer is created by the diffusion of elements selected from the group consisting of carbon, chromium, nitrogen, boron, cobalt, tungsten, molybdenum, nickel, copper, aluminum, silicon, titanium, or vanadium, alone or in combinations thereof.
A gripping tool comprising:
- a gripping element;
- at least one gripping surface formed on the gripping element wherein the at least one gripping surfaces comprises:
- a plurality of teeth extending from the gripping element;
- an outermost layer extending a depth from an outer surface of the gripping element, wherein the outermost layer is created by a chromizing process;
- an intermediate layer extending a depth from the inner surface of the outer layer of the gripping element, wherein the intermediate layer is created by a boriding process;
- an innermost layer extending a depth from the inner surface of the intermediate layer of the gripping element to a substrate material of the gripping surface, wherein the innermost layer is created by the diffusion of carbon.
A method of manufacturing a gripping tool, comprising:
- forming an innermost layer on a gripping surface of a gripping element by the diffusion of elements selected from the group consisting of carbon, chromium, nitrogen, boron, cobalt, tungsten, molybdenum, nickel, copper, aluminum, silicon, titanium, or vanadium, alone or in combinations thereof;
- forming an intermediate layer on the innermost layer by the diffusion of elements selected from the group consisting of carbon, chromium, nitrogen, boron, cobalt, tungsten, molybdenum, nickel, copper, aluminum, silicon, titanium, or vanadium, alone or in combinations thereof;
- forming an outermost layer on the intermediate layer by the diffusion or deposition of elements selected from the group consisting of carbon, chromium, nitrogen, boron, cobalt, tungsten, molybdenum, nickel, copper, aluminum, silicon, titanium, or vanadium, alone or in combinations thereof.
A method of manufacturing a gripping tool, comprising:
- forming an innermost layer on a gripping surface of a gripping element by the diffusion of carbon;
- forming an intermediate borided layer on the innermost layer;
- forming an outermost chromized layer on the intermediate layer.
Dependencies are inferred from the claim text.