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

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 – 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 – Rolling cutter bit or rolling cutter bit element

Solid lubricant for air cooled drill bit and method of drilling

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

Spacer ring for elastomeric seal

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

Spherical bit

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

Spindle cap bearing for rotary cone rock bits

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

Spiral wave bladed drag bit

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

Split cone bit

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

Steel body drill bits with tailored hardfacing structural...

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

Steel tooth bit with a bi-metallic gage hardfacing

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

Steel tooth bit with extra-thick hardfacing

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

Steel tooth cutter element with expanded crest

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

Steel tooth cutter element with gage facing knee

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

Steel tooth drill bit with improved tooth breakage resistance

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

Steep angle raise bit