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

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

Rock bit

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

Rock bit

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

Rock bit

Boring or penetrating the earth – Bit or bit element – With fluid conduit lining or element

Rock bit

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

Rock bit and improved forging method for manufacturing thereof

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

Rock bit borhole back reaming method

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

Rock bit circulation nozzle

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

Rock bit combination to enhance cuttings removal

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

Rock bit cone retention system

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

Rock bit construction

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

Rock bit cutter retainer

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

Rock bit face seal having anti-rotation pins

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

Rock bit face seal having lubrication gap

Boring or penetrating the earth – Bit or bit element – With fluid conduit lining or element

Rock bit for a down-the-hole drill

Boring or penetrating the earth – Bit or bit element – Specific or diverse material

Rock bit hardmetal overlay and process of manufacture

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

Rock bit nozzle and retainer assembly

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

Rock bit nozzle arrangement

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

Rock bit nozzle diffuser

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

Rock bit seal with extrusion prevention member