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

Face seal having strain induced face geometry

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

Failure indicator for rolling cutter drill bit

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

Fixed cutter bit with chisel or vertical cutting elements

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

Flat profile cutting structure for roller cone drill bits

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

Flat seal for a roller cone rock bit

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

Flow channels for tooth type rolling cutter drill bits

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

Flow diverter ring for a rotary drill bit and method

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

Fracture and wear resistant compounds and rock bits

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

Fracture and wear resistant compounds and rock bits

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

Fracture and wear resistant rock bits

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

Free cutting gage insert with relief angle