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

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

Drill bits comprising dual-phase tungsten carbide material

Boring or penetrating the earth – Bit or bit element – Magnetized or with magnet

Drill bits embodying impregnated segments

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

Drill bits for obtaining core samples

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

Drill bits with controlled cutter loading and depth of cut

Boring or penetrating the earth – Bit or bit element – Core forming type

Drill bits with enclosed fluid slots and internal flutes

Boring or penetrating the earth – Bit or bit element – Core forming type

Drill bits with enclosed slots

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

Drill bits with enhanced hydraulic flow characteristics

Boring or penetrating the earth – Bit or bit element – Core forming type

Drill bits with increased crown height

Boring or penetrating the earth – Bit or bit element – Core forming type

Drill bits with notches and enclosed slots

Boring or penetrating the earth – Bit or bit element – Magnetized or with magnet

Drill bits with polycrystalline diamond cutting elements mounted

Boring or penetrating the earth – Bit or bit element – Nonsymmetrical bit

Drill bits with predictable walk tendencies

Boring or penetrating the earth – Bit or bit element – Impact or percussion type

Drill blades for drill bit

Boring or penetrating the earth – Bit or bit element – Impact or percussion type

Drill crown

Boring or penetrating the earth – Bit or bit element – Plural separable cutter elements

Drill cutter bit

Boring or penetrating the earth – Bit or bit element – Plural separable cutter elements

Drill device for a drilling apparatus

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

Drill drive steel

Boring or penetrating the earth – Bit or bit element – Bit with leading portion forming smaller diameter initial bore

Drill for rock

Boring or penetrating the earth – Bit or bit element – Plural separable cutter elements

Drill having means for locating cutting bit in a bit holder

Boring or penetrating the earth – Bit or bit element – Impact or percussion type

Drill head