Circulating junk basket

Claim 1

A FISHING TOOL FOR RECOVERING JUNK FROM THE BOTTOM OF A WELL BORE, COMPRISING IN COMBINATION, A BODY, A JUNK BASKET ATTACHED TO THE BODY AND EXTENDING DOWNWARDLY THEREFROM; AN ELONGATED TUBULAR MANDREL ADAPTED TO BE CONNECTED TO A PIPE STRING FOR LOWERING THE TOOL INTO A WELL BORE; MEANS FOR SLIDABLY CONNECTING THE BODY TO THE MANDREL FOR LIMITED LONGITUDINAL MOVEMENT OF THE BODY RELATIVE TO THE MANDREL; PACKING MEANS, MEANS CONNECTED TO THE MANDREL AND THE BODY FOR COMPRESSING THE PACKING MEANS TO SEAL THE ANNULAR SPACE BETWEEN THE TOOL AND THE WELL BORE WHEN THE MANDREL MOVES DOWNWARDLY RELATIVE TO THE BODY; MEANS FOR PROVIDING A FLOW SPACE BETWEEN THE PACKING MEANS AND THE MANDREL THAT IS CONNECTED WITH THE ANNULAR SPACE BETWEEN THE PIPE STRING AND THE WELL BORE ABOVE THE PACKING MEANS; THE MANDREL HAVING TWO VERTICALLY SPACED, FLUID PORTS ADJACENT ITS LOWER END THROUGH WHICH FLUID CAN FLOW INTO AND OUT OF THE MANDREL; SAID TOOL HAVING A PLURALITY OF FLUID PASSAGES INCLUDING A FIRST FLUID PASSAGE CONNECTING THE UPPER FLUID PORT ON THE MANDREL TO THE ANNULAR SPACE BETWEEN THE JUNK BASKET AND THE WELL BORE, A SECOND FLUID PASSAGEWAY CONNECTING THE INTERIOR OF THE JUNK BASKET AND THE FLOW SPACE BETWEEN THE PACKING MEANS AND THE MANDREL, AND A THIRD FLUID PASSAGEWAY CONNECTING THE LOWER FLUID PORT IN THE MANDREL TO THE INTERIOR OF THE JUNK BASKET; AND VALVE MEANS FOR STOPPING THE FLOW OF FLUID BETWEEN THE LOWER FLUID PORT IN THE MANDREL AND THE INTERIOR OF THE JUNK BASKET WHEN THE JUNK BASKET ENGAGES THE BOTTOM OF THE WELL BORE AND THE MANDREL SLIDES VERTICALLY DOWNWARD RELATIVE TO THE BODY TO SET THE PACKER TO FORCE ALL OF THE FLUID PUMPED DOWN THE PIPE STRING INTO THE MANDREL TO FLOW OUT OF THE MANDREL THROUGH THE UPPER FLUID PORT, THROUGH THE FIRST PASSAGEWAY, AND INTO THE INTERIOR OF THE JUNK BASKET AT ITS LOWER END, TO TEND TO WASH ANY JUNK ADJACENT THE BOTTOM OF THE WELL BORE INTO THE JUNK BASKET.