LandOfFree - US Patents - Listing for Boring or penetrating the earth,Bit or bit element,Rolling cutter bit or rolling cutter bit element

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Controlled true geometry rock bit with one piece body

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Core bit having axial conical core breaker

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Core cutting rock bit

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Corrosion protection for head section of earth boring bit

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Crossflow rotary cone rock bit with extended nozzles

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Cutter assembly for rotary boring of earth

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Cutter assembly having a plurality of independently rotatable cu

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Cutter bit for use in drilling operations

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Cutter element adapted to withstand tensile stress

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Cutter element with expanded crest geometry

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Cutter element with non-rectilinear crest

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Cutter for tunnel boring machine

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Cutter head for pit-boring machine

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Cutter head mounting for drill bit

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Cutter mounting for a large hole earth boring bit

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Cutter of a boring head, hub for the cutter and method of manufa

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Cutting apparatus for a microtunnelling system

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Cutting element having enhanced cutting geometry

Boring or penetrating the earth – Bit or bit element – Rolling cutter bit or rolling cutter bit element

Cutting element having enhanced cutting geometry