LandOfFree - US Patents - Listing for Boring or penetrating the earth,With means movable relative to tool to receive, retain, or...

Boring or penetrating the earth – With means movable relative to tool to receive – retain – or... – Core-retaining or severing means

Apparatus and method for obtaining undisturbed soil core samples

Boring or penetrating the earth – With means movable relative to tool to receive – retain – or... – Core-retaining or severing means

Apparatus and methods for sponge coring

Boring or penetrating the earth – With means movable relative to tool to receive – retain – or... – Core-retaining or severing means

Apparatus and methods for sponge coring

Boring or penetrating the earth – With means movable relative to tool to receive – retain – or... – Core-retaining or severing means

Apparatus and methods for sponge coring

Boring or penetrating the earth – With means movable relative to tool to receive – retain – or... – Core-retaining or severing means

Apparatus for downward displacement of an inner tube within a co

Boring or penetrating the earth – With means movable relative to tool to receive – retain – or... – Core-retaining or severing means

Apparatus for extracting cores

Boring or penetrating the earth – With means movable relative to tool to receive – retain – or... – Core-retaining or severing means

Apparatus for recovering core samples at in situ conditions

Boring or penetrating the earth – With means movable relative to tool to receive – retain – or... – Receiver removable through below-ground tool shaft

Apparatus for recovering core samples under pressure

Boring or penetrating the earth – With means movable relative to tool to receive – retain – or...

Apparatus for taking core samples

Boring or penetrating the earth – With means movable relative to tool to receive – retain – or... – Receiver removable through below-ground tool shaft

Bit-stabilized combination coring and drilling system

Boring or penetrating the earth – With means movable relative to tool to receive – retain – or...

Braking devices for use in drilling operations

Boring or penetrating the earth – With means movable relative to tool to receive – retain – or... – Receiver removable through below-ground tool shaft

Cable-type core barrel

Boring or penetrating the earth – With means movable relative to tool to receive – retain – or... – Core-retaining or severing means

Cammed and shrouded core catcher

Boring or penetrating the earth – With means movable relative to tool to receive – retain – or... – Core-retaining or severing means

Cockable corebreaker apparatus

Boring or penetrating the earth – With means movable relative to tool to receive – retain – or... – Core-retaining or severing means

Continuous coring drill bit

Boring or penetrating the earth – With means movable relative to tool to receive – retain – or...

Core barrel

Boring or penetrating the earth – With means movable relative to tool to receive – retain – or... – Core-retaining or severing means

Core barrel

Boring or penetrating the earth – With means movable relative to tool to receive – retain – or... – Receiver removable through below-ground tool shaft

Core barrel adjusting system

Boring or penetrating the earth – With means movable relative to tool to receive – retain – or... – Receiver removable through below-ground tool shaft

Core barrel assemblies with braking devices