LandOfFree - US Patents - Listing for Boring or penetrating the earth,Bit or bit element

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

Drilling tool

Boring or penetrating the earth – Bit or bit element – Nonsymmetrical bit

Drilling tool

Boring or penetrating the earth – Bit or bit element – With helical-conveying portion

Drilling tool

Boring or penetrating the earth – Bit or bit element – With helical-conveying portion

Drilling tool

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

Drilling tool

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

Drilling tool

Boring or penetrating the earth – Bit or bit element – Core forming type

Drilling tool bit with a carrier member and cutter members

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

Drilling tool especially for the rotary percussion drilling...

Boring or penetrating the earth – Bit or bit element – Cutting edge self-renewable during operation

Drilling tool fitted with self-sharpening cutting edges

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

Drilling tool for percussive and rotary drilling

Boring or penetrating the earth – Bit or bit element – With fluid conduit lining or element

Drilling tool for the air-lifting process

Boring or penetrating the earth – Bit or bit element – Nonsymmetrical bit

Drilling tool having a drill bit with primary and secondary cutt

Boring or penetrating the earth – Bit or bit element – With helical-conveying portion

Drilling tool helical shank formed from a polygonal profile bar

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

Drilling tool including drilling head with multiple cutting...

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

Drilling tool with a cutting element that is configured as a...

Boring or penetrating the earth – Bit or bit element – Core forming type

Drilling tool with a two part input unit

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

Drilling tool with rotating conical rollers

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

Drilling tool with shock absorbers

Boring or penetrating the earth – Bit or bit element – Core forming type

Drilling tool, especially for hammer drills