Oil filtering apparatus

Claim 1

AN OIL FILTERING APPARATUS COMPRISING A TANK, AN OPENING AT THE BOTTOM OF THE TANK FOR DRAINAGE OF OIL FROM THE TANK, A FIRST PIPE OPENING AT ONE END INTO THE TANK ABOVE THE BOTTOM THEREOF AND A SECOND PIPE CONNECTED AT ONE END TO SAID DRAINAGE OPENING OF THE TANK, A PUMP, A THIRD PIPE CONNECTED TO SAID PUMP AT ONE END AND HAVING AN OPPOSITE END FOR CONNECTION WITH A SOURCE OF OIL TO BE PUMPED INTO SAID TANK FOR FILTERING THEREIN AND FROM SAID TANK WHEN FILTERED, A FILTER ELEMENT DISPOSED IN SAID TANK ABOVE THE DRAINAGE OPENING, VALVE MEANS CONNECTED WITH SAID PUMP FOR SELECTIVELY DIRECTING OIL IN A FIRST DIRECTION FROM THE THIRD PIPE AND THROUGH THE VALVE AND THE FIRST PIPE OR FOR DIRECTING OF OIL IN ANOTHER DIRECTION FROM THE SECOND PIPE AND VALVE THROUGH THE PUMP AND THROUGH THE THIRD PIPE, MEANS INCLUDING LINKAGE MEANS TO POSITIVELY OPERATE SAID VALVE MEANS, THE OPPOSITE ENDS OF THE FIRST AND SECOND PIPES BEING CONNECTED WITH SAID VALVE, A MOTOR REVERSING SWITCH, A REVERSIBLE MOTOR MEANS UNDER CONTROL OF SAID SWITCH AND CONNECTED WITH THE PUMP FOR ACTUATING THE PUMP TO PUMP OIL IN SAID DIRECTIONS SELECTIVELY AND A CONTROL MEANS CONNECTED WITH SAID VALVE LINKAGE MEANS AND SWITCH FOR EFFECTING SIMULTANEOUS OPERATION THEREOF.