Anchoring and sealing device

Claim 1

AN ANCHORING AND SEALING DEVICE FOR USE IN A WELL FLOW CONDUCTOR HAVING AN INTERNAL RECESS INCLUDING: AN TUBULAR MANDREL; ANCHORING MEANS MOUNTED ONT THE MANDREL AND MOVABLE OUTWARDLY TO EXPANDED POSITION IN THE INTERNAL RECESS OF THE WELL FLOW CONDUCTOR, SAID ANCHORING MEANS BEING MOUNTED ON THE MANDREL FOR LIMITED LONGITUDINAL MOVEMENT THEREON; LOCK MEANS MOUNTED ON THE MANDREL FOR LIMITED LONGITUDINAL MOVEMENT THEREON AND MOVABLE WITH THE MANDREL UPON UPWARD MOVEMENT OF THE MANDREL RELATIVE TO THE ANCHORING MEANS INTO LOCKING ENGAGEMENT WITH THE ANCHORING MEANS WHEN THE ANCHORING MEANS IS IN ITS EXPANDED POSITION TO LOCK THE ANCHORING MEANS IN THE INTERNAL RECESS OF THE WELL FLOW CONDUCTOR; A CONTROL MEMBER MOUNTED IN THE MANDREL FOR LIMITED LONGITUDINAL MOVEMENT RELATIVE TO THE MANDREL EXTENDING LONGITUDINALLY OF THE MANDREL AND HAVING AN UPPER END PORTION ENGAGEABLE BY RUNNING AND PULLING TOOLS WHEREBY LONGITUDINAL MOVEMENT MAY BE IMPARTED TO THE CONTROL MEMBER RELATIVE TO THE ANCHORING MEANS WHEN THE ANCHORING MEANS IS RECEIVED IN THE ANNULAR RECESS OF THE WELL FLOW CONDUCTOR; SEAL MEANS CARRIED BY THE MANDREL FOR SEALING BETWEEN THE MANDREL AND THE WELL FLOW CONDUCTOR; EXPANDER MEANS CARRIED BY THE CONTROL MEMBER AND MOVABLE INTO ENGAGEMENT WITH THE SEAL MEANS TO EXPAND THE SEAL MEANS INTO SEALING ENGAGEMENT WITH THE WELL FLOW CONCONDUCTOR AFTER THE ANCHORING MEANS HAS BEEN LOCKED INTO EXPANDED POSITION, SAID CONTROL MEMBER BEING MOVABLE BY THE APPLICATION OF A CONTINUOUS CONSTANT UPWARD FORCE THERETO TO MOVE THE MANDREL AND THE CONTROL MEMBER UPWARLDY RELATIVE TO THE ANCHORING MEANS TO CAUSE THE LOCK MEANS TO MOVE INTO ENGAGEMENT WITH THE ANCHORING MEANS TO LOCK THE ANCHORING MEANS IN ITS EXPANDED POSITION AND SUBSEQUENTLY TO MOVE THE CONTROL MEMBER UPWARDLY TO MOVE THE EXPANDER MEANS INTO ENGAGEMENT WITH THE SEAL MEANS, SAID MANDREL SAID CONTROL MEMBER HAVING COOPERABLE PIN AND SLOT MEANS OPERATIVELY CONNECTING SAID MANDREL AND SAID CONTROL MEMBER FOR LIMITED MOVEMENT RELATIVE TO EACH OTHER LONGITUDINALLY AND ROTATIVELY ABOUT THEIR LONGITUDINAL AXES, SAID PIN AND SLOT MEANS HAVING MEANS THEREON COACTING THE POSITION SAID MANDREL AND SAID CONTROL MEMBER IN A PLURALITY OF PREDETERMINED LONGITUDINALLY SPACED AND ROTATIVELY DISPLACED POSITIONS WITH RESPECT TO EACH OTHER; MEANS BIASING SAID MANDREL AND SAID CONTROL MEMBER FOR ROTATABLE MOVEMENT ABOUT THEIR LONGITUDINAL AXES RELATIVE TO EACH OTHER; SAID COOPERABLE PIN AND SLOT MEANS BEING ENGAGEABLE UPON ROTATION OF THE CONTROL MEMBER IN ONE DIRECTION THROUGH A PREDETERMINED ANGLE RELATIVE TO THE MANDREL TO PREVENT DOWNWARD MOVEMENT OF THE CONTROL MEMBER AND THE EXPANDER MEANS RELATIVE TO THE SEAL MEANS AFTER THE EXPANDER MEANS HAS MOVED THE SEAL MEANS INTO EXPANDED SEALING POSITIONS, THE MANDREL, THE CONTORL MEMBER END THE EXPANDER MEANS HAVING A FLOW PASSAGE AFFORDING COMMUNICATION WITH THE WELL FLOW CONDUCTOR ABOVE AND BELOW THE SEALING MEANS; AND PLUG MEANS FOR CLOSING SAID PASSAGE WHEN THE EXPANDER MEANS IS IN SEAL EXPANDING POSITION, THE CONTROL MEMBER BEING OPERATIVELY CONNECTED TO THE PLUG MEANS FOR MOVING THE PLUG MEANS UPWARDLY TO OPEN POSITION UPON UPWARD MOVEMENT BEING IMPARTED TO THE CONTROL MEMBER AFTER THE EXPANDER MEANS HAS BEEN MOVED TO ITS SEAL EXPANDING POSITION WHEREBY THE PRESSURE ABOVE AND BELOW THE SEAL MEANS MAY BE EQUALIZED.