LandOfFree - US Patents - Listing for Boring or penetrating the earth,Cutter element laterally shiftable below ground

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Pivoted about substantially longitudinal axis

Self actuating underreamer

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by fluid pressure

Stabilizer and rotary expansible drill bit apparatus

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by fluid pressure

Three-blade underreamer

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by longitudinally relatively movable...

Toggle actuated underreamer

Boring or penetrating the earth – Cutter element laterally shiftable below ground

Tool for cutting groove in hole

Boring or penetrating the earth – Cutter element laterally shiftable below ground

Tubing bit opener

Boring or penetrating the earth – Cutter element laterally shiftable below ground

Under reamer

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Plural cutter elements longitudinally relative movable into...

Under reamer

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Plural cutter elements longitudinally relative movable into...

Under-reaming pile bore excavator

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by fluid pressure

Under-reaming pile bore excavator

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by fluid pressure

Under-reaming tool for boreholes

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by longitudinally relatively movable...

Undercutting device for anchor holes

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by longitudinally relatively movable...

Undercutting drill

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by fluid pressure

Underreamer

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by fluid pressure

Underreamer

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by fluid pressure

Underreamer

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by fluid pressure

Underreamer and method of use

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by longitudinally relatively movable...

Underreamer cutter arm

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Cutter element shifted by cam or gear axially rotatable...

Underreamer having splined torque transmitting connection betwee