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

Body structure and nozzle for enhancing the flow of drilling flu

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

Bonding of cutters in diamond drill bits

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

Bore bit for very hard material

Boring or penetrating the earth – Bit or bit element – Axially parallel side wall with transverse cuttings...

Borehole drill construction

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

Boring apparatus

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

Boring apparatus capable of boring straight holes

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

Boring bit

Boring or penetrating the earth – Bit or bit element – Adjustable cutter element

Boring device

Boring or penetrating the earth – Bit or bit element – Adjustable cutter element

Boring device

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

Boring drill bit

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

Boring head

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

Boring head and bit protective collar

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

Boring head cutter

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

Boring head method and boring head for a ground boring device

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

Boring head with extension elements

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

Boring head, roller cutter and saddle for a boring head for...

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

Boring tool

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

Boring tool with rectangular plates

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

Bowed crests for milled tooth bits