LandOfFree - US Patents - Listing for Boring or penetrating the earth,With storage means for bit lubricant carried by bit or shaft,Rotation of bit actuates lubricant feed means

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Cutter actuated rock bit lubrication system

Boring or penetrating the earth – With storage means for bit lubricant carried by bit or shaft – Rotation of bit actuates lubricant feed means

Patent

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Drill bit lubricant circulation system

Boring or penetrating the earth – With storage means for bit lubricant carried by bit or shaft – Rotation of bit actuates lubricant feed means

Patent

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Drill bit lubrication system

Boring or penetrating the earth – With storage means for bit lubricant carried by bit or shaft – Rotation of bit actuates lubricant feed means

Patent

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Drill bits with cone retention means

Boring or penetrating the earth – With storage means for bit lubricant carried by bit or shaft – Rotation of bit actuates lubricant feed means

Patent

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Grease pump for sealed bearing rotary cone rock bits

Boring or penetrating the earth – With storage means for bit lubricant carried by bit or shaft – Rotation of bit actuates lubricant feed means

Patent

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Load responsive hydrodynamic bearing

Boring or penetrating the earth – With storage means for bit lubricant carried by bit or shaft – Rotation of bit actuates lubricant feed means

Reexamination Certificate

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Rock bit internal lubricant pump

Boring or penetrating the earth – With storage means for bit lubricant carried by bit or shaft – Rotation of bit actuates lubricant feed means

Patent

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Rock drill bit lubricant circulating system

Boring or penetrating the earth – With storage means for bit lubricant carried by bit or shaft – Rotation of bit actuates lubricant feed means

Patent

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Rotary drill bit

Boring or penetrating the earth – With storage means for bit lubricant carried by bit or shaft – Rotation of bit actuates lubricant feed means

Patent

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Rotary earth boring drill bit with centrifugal lubrication syste

Boring or penetrating the earth – With storage means for bit lubricant carried by bit or shaft – Rotation of bit actuates lubricant feed means

Patent

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Thrust flange actuated rock bit lubrication system

Boring or penetrating the earth – With storage means for bit lubricant carried by bit or shaft – Rotation of bit actuates lubricant feed means

Patent

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Valve assembly for drill bit lubrication system

Boring or penetrating the earth – With storage means for bit lubricant carried by bit or shaft – Rotation of bit actuates lubricant feed means

Patent

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Viscous pump rock bit lubrication system

Boring or penetrating the earth – With storage means for bit lubricant carried by bit or shaft – Rotation of bit actuates lubricant feed means

Patent

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