Rotary casing drill

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12209497
APP PUB NO 20230340837A1
SERIAL NO

18139208

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A rotary casing drill for gripping and rotating a tubular structure such as a well casing. The drill includes a housing having at least one gear positioned within the housing. The drill also includes a grip assembly that is driven by the gear. The grip assembly is configured to grip the tubular structure to allow the tubular structure to be rotated about an axis. The grip assembly including a plurality of grippers that are configured to grip the tubular structure to allow it to be rotated. The grippers are positioned radially outwardly from the tubular structure and are adapted to move in a radial direction toward and away from the tubular structure. The grip assembly also includes a compression ring that is positioned radially outwardly from the grippers and is configured to move in an axial direction from a first position to a second position. Axial movement of the compression ring causes radial movement of the grippers. The grip assembly further includes a push-pull member configured to axially move the compression ring and at least one biasing member that is configured to bias one or more of the grippers radially outwardly away from the tubular structure when the compression ring is moved axially away from the grippers by the push-pull member. When the compression ring is in the second position, the push-pull member is permitted to float with respect to the compressing ring.

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First Claim

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Family

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Patent Owner(s)

Patent OwnerAddress
ATLAS MANUFACTURING LTD6524 N ISLAND HWY BRITTISH COLUMBIA MERVILLE V0R 2M0

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Anderson, Kenneth Merville, CA 45 236
Fiander, David Merville, CA 1 0
Glover, Patrick Merville, CA 1 0

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Maintenance Fees

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Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00