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

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

Anti-whirl drill bit

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

Apparatus for drilling holes in mine roofs and a roof drill bit

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

Arrangement of roller cone inserts

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

Asymmetric diamond impregnated drill bit

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

Bi-center drill bit

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

Boring head and bit protective collar

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

Button drill bit structure

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

Cutting tool for a pneumatic hammer

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

Drill bit

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

Drill bit

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

Drill bit for directional drilling in cobble formations

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

Drill bit for impact-assisted directional boring

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

Drill bit for producing undercuts

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

Drill bit having enhanced stability

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

Drill bit with asymmetric gage pad configuration

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

Drill bits with predictable walk tendencies

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

Drilling structure with non-axial gage

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

Drilling tool

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

Drilling tool having a drill bit with primary and secondary cutt