Pipe handling apparatus

Abstract

Abstract 1. APPARATUS FOR UNSCREWING SELECTED THREADED CONNECTIONS BETWEEN SECTIONS OF PIPE AND THE LIKE WHEREIN EACH PIPE SECTION HAS FLATS ON THE EXTERIOR THEREOF, SAID APPARATUS COMPRISING: ROTATING MEANS ENGAGEABLE WITH ONE OF THE PIPE SECTIONS FOR ROTATING THE PIPE, SAID ROTATING MEANS INCLUDING A CHUCK MEMBER SLIDINGLY MOUNTED THEREON, SAID CHUCK MEMBER HAVING AN OPENING EXTENDING COAXIALLY THERETHROUGH WITH RESPECT TO THE AXIS OF SAID PIPE; MOVING MEANS FOR DISPLACING SAID ROTATING MEANS AND PIPE ALONG THE AXIS OF SAID PIPE; WRENCH MEANS ADAPTED TO BE POSITIONED IN THE FLATS AND SIZED TO BE RECEIVED WITHIN SAID OPENING IN ENGAGEMENT WITH SAID CHUCK MEMBER; CHUCK ACTUATING MEANS FOR MOVING SAID CHUCK MEMBER INTO ENGAGEMENT WITH SAID WRENCH MEANS HOLDING SAID WRENCH MEANS IN SAID FLATS CONNECTING SAID ONE PIPE SECTION AND ROTATING MEANS FOR COMMON ROTATION; AND, SLIP MEANS MOVABLE INTO HOLDING ENGAGEMENT WITH THE FLATS ON SAID ONE PIPE SECTION, WHEREBY THE ROTATING MEANS IS ROTATED TO BREAK THE CONNECTION BETWEEN SAID ONE PIPE SECTION AND THE ROTATING MEANS, AND SAID SLIP MEANS BEING MOVABLE INTO HOLDING ENGAGE- MENT WITH THE FLATS ON THE SUBJECENT PIPE SECTION UPON MOVEMENT OF SAID PIPE SECTIONS BY SAID MOVING MEANS, WHEREBY ROTATION OF THE ROTATING MEANS RORATES SAID ONE PIPE SECTION ENGAGED BY THE WRENCH MEANS AND UNTHREADS THE CONNECTION BETWEEN THE PIPE SECTIONS.

Inventors

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