Cdp, Ltd.

Westinghouse Electric Corporation

Smith International, Inc.

Other

Metals, Inc.

Appliedus Corporation

Gunes M Ecer

Israel Stol

William J Salesky

Gerald G Lessmann

Susan Wood

Jan J Schreurs

Karl O Kuhn

Brian Oslin

A fuel cell, comprising an electrolyte body and, embedded within it, at least two separate electrodes capable of conducting electrons; the electrodes being sufficiently porous to allow gas flow through them; one electrode being an electrically negative anode and the other electrode being an electrically positive cathode, and the electrolyte body being capable of carrying charged particles between the anode and cathode; the anode and cathode being electrically connected to form an electrical circuit.

Fuel cells and methods of manufacturing the same

A method of cladding an internal cavity surface of a metal object is disclosed. The method includes the steps:

Pump liners and a method of cladding the same

A method of forming a deformable body to desired shape includes the steps

Forming of workpiece using flowable particulate

The method of forming a cutter, which includes a core and a wear resistant insert defining a body means which includes

Consolidation of a drilling element from separate metallic components

Conical cutters for drill bits, and processes to produce same

A cladding process is disclosed wherein hard carbide cutter inserts, as well as polycrystalline diamond composites, are metallurgically bonded into an exterior core of a rock bit cone or a drag bit body. The cladding is bonded onto the exterior surface of the core of the cone or the drag bit by a powder metallurgy process. A thin layer or coating of a suitable metal, preferably nickel, is provided on, for example, the carbide inserts, prior to mounting into the core. The coating prevents degradation of the carbide through loss of carbon into the core during the powder metallurgy process and accommodates mismatch of thermal expansion between the cutter insert and the core.

Rock bits having metallurgically bonded cutter inserts

A roller bit cutter comprises a tough, metallic, generally conical and fracture resistant core having a hollow interior, the core defining an axis; an annular, metallic, radial bearing layer carried by the core at the interior thereof to support the core for rotation, the bearing layer extending about the core axis; a wear resistant outer metallic layer on the exterior of the core; metallic teeth integral with the core and protruding outwardly therefrom, at least some of the teeth spaced about the axis; and an impact and wear resistant layer on each tooth to provide hard cutting edges as the bit cutter is rotated about the core.

Rolling cutters for drill bits, and processes to produce same

Rolling cutters for drill bits

A method of consolidating metallic body means comprises

Consolidation of a part from separate metallic components

A bearing surface having microasperities is treated by a process comprising the steps of generating a high density energy beam and producing relative motion between the beam and the bearing surface to define a succession of points at each of which the beam impinges upon the bearing surface for an interaction time during which localized heating occurs and then rapid cooling begins to cause partial melting followed by rapid solidification, that, in the direction normal to the bearing surface extends to a depth less than the microasperity height and that, owing to said relative motion, extends throughout an area of the bearing surface to define a microdimpled surface.

Process for treating a bearing surface to modify microasperities

A self-sharpening rotary drag bit assembly comprises:

Self sharpening drag bit for sub-surface formation drilling

The present invention pertains to steel articles having improved wear and friction properties and the method of producing these articles. A steel surface containing relatively high levels of nitrogen and having a surface film containing carbon is implanted with high energy ions. Overlapping layers enriched in carbon and nitrogen are formed beneath the surface and provide the steel with a surface that has improved wear and friction characteristics.

Wear resistant steel articles with carbon, oxygen and nitrogen implanted

A bearing structure having a substrate and a bearing surface of alternating, spaced, hard metal and soft metal areas is disclosed. The hard metal is metallurgically bonded to the base metal substrate by rapidly melting in a predetermined pattern a powdered hardfacing composition disposed on a bearing precursor surface of the base metal substrate. The melting is accomplished by scanning with a laser beam, or like high intensity, concentrated energy source. The melt is allowed to solidify rapidly. Gaps formed between isolated areas of the solidified hard metal are filled with a melt of a soft metal. After solidification of the molten soft metal, the resulting composite structure is machined to a desired depth to provide the composite bearing surface.

Growing community of inventors

Irvine, CA, United States of America

Gunes M Ecer