Smith International, Inc.

Other

Xiayang Sheng

Youhe Zhang

Madapusi K Keshavan

Yuelin Shen

J Daniel Belnap

Gregory Thomas Lockwood

Alan W Lockstedt

Guodong Zhan

Harry Pratt

A matrix powder for forming a matrix bit body, the matrix powder essentially consisting of a plurality of carbide particles having a particle size distribution of &#xb1;20% of a median particle size; and a plurality of metal binder particles is disclosed.

Matrix powder for matrix body fixed cutter bits

A sintered polycrystalline composite for cutting tools that includes a plurality of diamond or cubic boron nitride particles; a plurality of nanotube materials; and a refractory or binder material is disclosed. Methods of forming such polycrystalline composites that include integrating or mixing a plurality of nanotube materials with diamond or cubic boron nitride particle and/or refractory or binder particles are also disclosed.

Polycrystalline composites reinforced with elongated nanostructures

A pressure regulating device for connecting a pressure source to an inflatable object comprises: a hollow casing; a valve system positioned inside the hollow casing; a fluid inlet connected to the valve system; a fluid outlet; a fluid conduit positioned inside the hollow casing between the fluid inlet and the fluid outlet; a pressure-sensing structure attached to the conduit and being movable inside the hollow casing and attached to the pressure sensing structure; a pressure-generating structure disposed inside the hollow casing and attached to the pressure-sensing structure. The pressure-generating structure can exert a bias force upon the pressure-sensing structure in proportion to a desired pressure in the inflatable object. The pressure regulator can inflate the object when the initial pressure inside the inflatable object is lower than the desired pressure and automatically terminates inflation when the pressure inside the object reaches the desired pressure.

Pressure regulator and method of use

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Sugar Land, TX, United States of America

Xiayang Sheng