A locking clutch to selectively transmit torque from a stator of a downhole tool to a rotor of the downhole tool includes at least one locking pawl disposed upon the rotor, wherein the at least one locking pawl comprises a load path, at least one pivot axis, and a mass center, wherein the at least one locking pawl i...

The present invention relates to tungsten rhenium compounds and composites and to methods of forming the same. Tungsten and rhenium powders are mixed together and sintered at high temperature and high pressure to form a unique compound. An ultra hard material may also be added. The tungsten, rhenium, and ultra hard ...

A mill for milling a window through metal casing in a well bore that includes a body having a plurality of blades; a plurality of cylindrically bodied cutting elements on said blades; and a plurality of diamond enhanced elements having a non-planar diamond working surface on said blades; wherein said cutting element...

A downhole tool disposed in a drillstring includes a bypass valve unit including at least one bypass port, wherein the bypass port is configured to control fluid flow from a central bore of the drillstring to a wellbore annulus, and an activation sub having a frangible obstruction disposed in a central bore thereof ...

[0043] A drill bit that includes a bit body, at least one roller cone attached to the bit body and able to rotate with respect to the bit body, and a plurality of cutting elements disposed on the at least one roller cone is disclosed. At least one of the plurality of cutting elements includes a first area defining ...

A method for joining a valve member for use within a valve the method including brazing a body portion having a head and a base the base having a bore extending a depth therein to a leg portion having a shaft the shaft having a distal end a proximal end opposite the distal end and a plurality of legs extending radia...