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

Sharp gage for mill tooth rockbits

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

Shirttails for reducing damaging effects of cuttings

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

Shirttails for reducing damaging effects of cuttings

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

Shirttails for reducing damaging effects of cuttings

Boring or penetrating the earth – Bit or bit element – Casing shoe type

Shoe

Boring or penetrating the earth – Bit or bit element – With bit guide or bore wall compacting device

Side cutting gage pad improving stabilization and borehole...

Boring or penetrating the earth – Bit or bit element – With bit guide or bore wall compacting device

Side cutting gage pad improving stabilization and borehole...

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

Single cone earth boring bit

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

Single cone rock bit having inserts adapted to maintain hole...

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

Single cone rock bit having inserts adapted to maintain hole...

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

Single energizer face seal for rocks bits with floating...

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

Single-cone rock bit having cutting structure adapted to...

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

Single-pass notching and drilling tool and method of drilling a

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

Sintered and forged article, and method of forming same

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

Skewed inserts for an earth boring cutter

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

Small disc cutter, and drill bits, cutterheads, and tunnel borin

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

Soft formation drill bit

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

Soil auger

Boring or penetrating the earth – Bit or bit element – With helical-conveying portion

Soil displacement auger head for installing piles in the soil