Fluid-actuated hand tool

Claim 1

A FLUID-ACTUATED TOOL FOR CRIMPING FERRULES, SAID TOOL COMPRISING A BODY HAVING A CYLINDRICAL BORE THEREIN, MEANS DEFINING AT LEAST TWO ADJACENT COMPARTMENTS IN SAID BORE, A FIRST PISTON IN A FIRST ONE OF SAID COMPARTMENTS, SAID FIRST PISTON HAVING A PISTON HEAD DIVIDING THE FIRST COMPARTMENT INTO FIRST AND SECOND PRESSURE CHAMBERS AND HAVING A PISTON ROD EXTENDING THROUGH AN END WALL OF SAID SECOND CHAMBER, AN ADDITIONAL PISTON IN EACH OTHER COMPARTMENT, EACH ADDITIONAL PISTON HAVING A PISTON HEAD DIVIDING EACH OTHER COMPARTMENT INTO FIRST AND SECOND CHAMBERS AND HAVING A PISTON ROD EXTENDING THROUGH AN END WALL INTO AN ADJACENT COMPARTMENT, THE PISTON IN THE COMPARTMENT ADJACENT SAID FIRST ONE OF SAID COMPARTMENTS EXTENDING INTO SAID FIRST PRESSURE CHAMBER OF SAID FIRST COMPARTMENT, A PAIR OF JAWS MOUNTED ON ONE END OF SAID BODY FOR PIVOTAL MOVEMENT TOWARD AND AWAY FROM EACH OTHER, JAW ACTUATING MEANS ACTING BETWEEN SAID JAWS AND THE PISTON ROD OF SAID FIRST PISTON FOR FORCING THE JAWS TOWARD EACH OTHER IN RESPONSE TO FORWARD MOVEMENT OF THE PISTON ROD OF SAID FIRST PISTON, MEANS FOR ADMITTING PRESSURIZED FLUID TO EACH FIRST CHAMBER AND FOR SIMULTANEOUSLY EXHAUSTING FLUID FROM EACH SECOND CHAMBER TO THEREBY DRIVE EACH PISTON AND PISTON ROD FORWARD WITH THE PISTON ROD OF EACH ADDITIONAL PISTON ABUTTING THE HEAD OF A PISTON IN AN ADJACENT COMPARTMENT SO THAT THE JAWS ARE MOVED TOWARD EACH OTHER.