LandOfFree - US Patents - Listing for Boring or penetrating the earth,Bit or bit element,Bit with leading portion forming smaller diameter initial bore

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

Fixed blade fixed cutter hole opener

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

Integral blade hole opener

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

Jack element for a drill bit

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

Jack element with a stop-off

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

Latchable reaming bit

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

Mining bit

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

Multi profile performance enhancing centric bit and method...

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

Percussion borer for forming bores in stone material

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

Pilot bit

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

Pilot bit for use in auger bit assembly

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

Pilot reamer with composite framework

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

Piloted drill barrel and method of using same

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

Reaming apparatus

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

Reaming apparatus and method with ability to drill out...

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

Reaming apparatus and method with enhanced structural...

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

Rock drill

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

Rock drilling tool

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

Rock drilling tool and reamer for percussive drilling

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

Rock drilling tool with radially extendable two-piece reamer