LandOfFree - US Patents - Listing for Boring or penetrating the earth

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Variable orifice sleeve valve hydraulic jar tool

Boring or penetrating the earth – Below-ground impact members – Fluid-operated

[ 0.00 ] – not rated yet Voters 0 Comments 0

Variable outside diameter tool for use in pikewells

Boring or penetrating the earth – Cutter element laterally shiftable below ground – With shifting mechanism spring biased to operative position

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Variable rake mine tool insert and method of use

Boring or penetrating the earth – Processes

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Variable wear pad for crossflow drag bit

Boring or penetrating the earth – Bit or bit element – Magnetized or with magnet

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Variable-length sampling device

Boring or penetrating the earth – Boring without earth removal – Combined with earth removal

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Varied pitch rotary rock bit

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

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Vehicle mounted post hole digger

Boring or penetrating the earth – With tool drive prime mover or above-ground mechanical...

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Vehicle-mounted earth drilling apparatus

Boring or penetrating the earth – With above-ground means for preparing or separating drilling...

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Venting and sealing system for down-hole drills

Boring or penetrating the earth – Below-ground impact members – Fluid-operated

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Versatile fluid motor and pump

Boring or penetrating the earth – With below-ground tool drive prime mover – Fluid rotary type

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Vertical direction adjustment tool for downhole drilling...

Boring or penetrating the earth – Means traveling with tool to constrain tool to bore along... – Axially spaced opposed bore wall engaging guides

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Vertical drilling method and apparatus

Boring or penetrating the earth – Processes – Boring with specific fluid

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Vertical drilling system for controlling deviation

Boring or penetrating the earth – With tool shaft detail – Shaft carried guide or protector

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Vertical percussion ground boring tool apparatus and method

Boring or penetrating the earth – Boring without earth removal

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Vertical positioning system for drilling boreholes

Boring or penetrating the earth – With signaling – indicating – testing or measuring – Tool position direction or inclination measuring or...

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Vertically adjustable pipe racking apparatus

Boring or penetrating the earth – Below-ground impact members – With releasable means to detachably retain telescoping...

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Vibration and erosion resistant nozzle

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

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Vibration dampened table bushing assembly for rotary drilling ma

Boring or penetrating the earth – Processes

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Vibration damping tool

Boring or penetrating the earth – With tool shaft detail

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Vibration isolator

Boring or penetrating the earth – Below-ground impact members – With releasable means to detachably retain telescoping...

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

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