LandOfFree - US Patents - Listing for Boring or penetrating the earth,Bit or bit element,With fluid conduit lining or element

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

Drill drive steel

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

Drilling assembly and method for drilling a barehole into...

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

Drilling head

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

Drilling system drive steel

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 – With fluid conduit lining or element

Earth boring bit having a replaceable, threaded nozzle with wren

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

Earth removal member with features for facilitating...

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

Earth-boring drill bits with enhanced formation cuttings...

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

Earth-boring drill bits with enhanced formation cuttings...

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

Entrainment fluid channeling device for a down-hole drill...

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

Erosion resistant fluid passageways and flow tubes for...

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

Erosion resistant rock drill bit

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

Fluid flow control for drag bits

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

High flow weld-in nozzle sleeve for rock bits

Reissue Patent

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

High flow weld-in nozzle sleeve for rock bits

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

High pressure fluid jet cutting and drilling apparatus

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

Impregnated bit with changeable hydraulic nozzles

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

Internal fluid screen to prevent nozzle and port plugging

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

Jetting apparatus