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

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

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

Drilling bucket apparatus for cast-in-place piles with expanded

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

Drilling device for drilling and reaming of a hole

Boring or penetrating the earth – Cutter element laterally shiftable below ground – With shifting mechanism spring biased to operative position

Drilling tool

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

Drilling tool

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

Drilling tool with extendable elements

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

Earth auger and method for driving piles and the like by means o

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

Enhanced diameter clean-out tool and method

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

Enlarged bore hole drilling method and apparatus

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

Enlarging well bores having tubing therein

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

Excavation tool