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

Device for drilling an undercut in a borehole

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

Divided-bucket type rotary excavator

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

Downhole cutting tool

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

Downhole tool with extendable members

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

Downhole under-reamer tool

Boring or penetrating the earth – Cutter element laterally shiftable below ground – Plural selectively shiftable cutter elements

Downhole unit for use in boreholes in a subsurface formation

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

Drill bit

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

Drill bit with set of underreamer arms

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

Drill bit with yielding support and force applying structure for

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

Drill for water wells

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

Drill means

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

Drill tool

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

Drilling and hole enlargement device

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

Drilling apparatus

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

Drilling apparatus

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

Drilling apparatus

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

Drilling apparatus

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

Drilling apparatus and cutter

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

Drilling apparatus and cutter therefor