Drilling shock absorber
First Claim
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1. A SHOCK ABSORBING DEVICE ADAPTED TO BE POSITIONED IN A DRILL STRING OR THE LIKE AND ROTATED THEREWITH, COMPRISING A BODY HAVING A LONGITUDINAL OPENING THERETHROUGH, SAID BODY HAVING AN UPPER TUBULAR MEMBER AND A LOWER TUBULAR MEMBER LONGITUDINALLY SPACED FROM EACH OTHER, A FLUID CONDUCTOR PIPE CONNECTED TO ONE OF SAID TUBULAR MEMBERS AND SLIDABLY DISPOSED IN THE OTHER OF SAID TUBULAR MEMBERS FOR CONDUCTING FLUID THROUGH SAID BODY EVEN THOUGH RELATIVE LONGITUDINAL MOVEMENTS OF SAID TUBULAR MEMBERS OCCUR, RESILIENT TORQUE MEANS ON
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1 Claim
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1. A SHOCK ABSORBING DEVICE ADAPTED TO BE POSITIONED IN A DRILL STRING OR THE LIKE AND ROTATED THEREWITH, COMPRISING A BODY HAVING A LONGITUDINAL OPENING THERETHROUGH, SAID BODY HAVING AN UPPER TUBULAR MEMBER AND A LOWER TUBULAR MEMBER LONGITUDINALLY SPACED FROM EACH OTHER, A FLUID CONDUCTOR PIPE CONNECTED TO ONE OF SAID TUBULAR MEMBERS AND SLIDABLY DISPOSED IN THE OTHER OF SAID TUBULAR MEMBERS FOR CONDUCTING FLUID THROUGH SAID BODY EVEN THOUGH RELATIVE LONGITUDINAL MOVEMENTS OF SAID TUBULAR MEMBERS OCCUR, RESILIENT TORQUE MEANS ON
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Current AssigneeHubert H. Wagnon, Robert A. Blair
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Original AssigneeHubert H. Wagnon, Robert A. Blair
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InventorsBlair, Robert A., Wagnon, Hubert H.
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Application NumberUS04/134,519Time in Patent Office918 DaysField of SearchUS Class Current464/21CPC Class CodesE21B 17/07 Telescoping joints for vary...
