Trolley and traveling block system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6609565
SERIAL NO

09688979

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A trolley hoisting system for use in a rig has a derrick mounted to the rig, a winch line extending from an upper end of the derrick, and a traveling block located at one end of the winch line. An injector trolley has at least one cavity for allowing the winch line passage therethrough and is adapted to engage the traveling block so that the winch line may be used to raise and lower the injector trolley along the derrick. A lock arrangement for fixing the injector trolley to the derrick at an upper end thereof allows the traveling block to extend below the injector trolley for performing other desired tasks on the rig.

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Patent Owner(s)

Patent OwnerAddress
NABORS CANADA3000 500 - 4TH AVENUE SW CALGARY T2P 2V6

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Andreychuk, Mark T Cochrane, CA 6 505
Rike, Jr Emanuel A Richmond, TX 1 37

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