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

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

Rock bit construction

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

Rock bit cutter retainer

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

Rock bit face seal having anti-rotation pins

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

Rock bit face seal having lubrication gap

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

Rock bit nozzle and retainer assembly

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

Rock bit nozzle arrangement

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

Rock bit nozzle diffuser

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

Rock bit seal with extrusion prevention member

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

Rock bit seal with multiple dynamic seal surface elements

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

Rock bit with a thermal insulating seal ring positioned in...

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

Rock bit with a thermal insulating seal ring positioned in...

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

Rock bit with an extended center jet

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

Rock bit with cavitating jet nozzles

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

Rock bit with enhanced fluid return area

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

Rock bit with extended pickup tube

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

Rock bit with hardfacing material incorporating spherical cast c

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

Rock bit with hydraulic configuration

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

Rock bit with improved extended nozzle

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

Rock bit with improved gage insert