LandOfFree - US Patents - Listing for Boring or penetrating the earth

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

Earth boring drill bit with shell supporting an external drillin

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

Earth boring drill bits made from a low-carbon,...

Boring or penetrating the earth – Processes

Earth boring drill bits with casing component drill out...

Boring or penetrating the earth – Processes – Boring curved or redirected bores

Earth boring guide

Boring or penetrating the earth – Boring without earth removal

Earth boring head

Boring or penetrating the earth – With means to feed drive

Earth boring machine

Boring or penetrating the earth – Automatic control

Earth boring machine and method

Boring or penetrating the earth – With means carrying cuttings laterally of bore axis...

Earth boring machine and working crane

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

Earth boring machine with crushing rollers

Boring or penetrating the earth – Boring without earth removal – Combined with earth removal

Earth boring method and apparatus

Boring or penetrating the earth – Boring by directly applying heat to fluidize or comminute – Electrically produced heat

Earth boring method employing high powered laser and alternate f

Boring or penetrating the earth – With below-ground tool drive prime mover – Plural below-ground drive prime movers

Earth boring system

Boring or penetrating the earth – Processes – Boring curved or redirected bores

Earth boring system and apparatus

Boring or penetrating the earth – With receptacle – Sieve or strainer

Earth boring tool

Boring or penetrating the earth – Automatic control

Earth boring tool with continuous rotation impulsed steering

Boring or penetrating the earth – With tool shaft detail – Helix or helically arranged structure

Earth displacement drill

Boring or penetrating the earth – Tool element or continuously driven flexible or articulated...

Earth drilling and boring system

Boring or penetrating the earth – With above-ground means to feed tool

Earth drilling apparatus

Boring or penetrating the earth – With magazine for successively moving unconnected – oriented...

Earth drilling apparatus