Multiple cone liner hanger

Claim 1

A LINEAR HANGER FOR WELL PIPES, COMPRISING A TUBULR MANDREL CONNECTIBLE INTO A LINER STRING, A TUBULAR SLIP CAGE SLIDABLY MOUNTED ON THE MANDREL, CONNECTION MEANS RELEASABLY SECURING THE CAGE TO THE MANDREL, MEANS CARRIED BY THE SLIP CAGE OPERABLE TO FRICTINALLY ENGAGE A SURROUNDING WELL PIPE, TWO VERTICALLY SPACED SETS OF CIRCUMFERENTIALLY SPACED PIPE-GRIPPING SLIPS MOUNTED IN FIXED LONGITUDINAL RELATION ON THE CAGE ABOUT THE MANDREL, MEANS SUPPORTING SAID SLIPS ON THE CAGE FOR RADIAL MOVEMENT, A DOWNWARDLY TAPERING SLIP EXPANDER CONE MOUNTED ON THE MANDREL ABOVE EACH OF THE SETS OF SLIPS FOR RADIALLY EXPANDING THE LATTER IN RESPONSE TO RELATIVE DOWNWARD MOVEMENT OF THE MANDREL, EACH OF SAID EXPANDER CONES COMPRISING A PLURALITY OF CIRCUMFERENTIALLY SPACED CONE SEGMENTS POSITIONED FOR LONGITUDINAL ALIGNMENT WITH THE RELATED SLIPS, THE SPACES BETWEEN THE SLIPS AND CONE SEGMENTS PROVIDING FLUID BY-PASS PASSAGES BETWEEN THE MANDREL AND A SURROUNDING WELL PIPE.