Material compacting device

Claim 1

A MATERIAL COMPACTING DEVICE COMPRISING, A HOLLOW FRAME HAVING AN INTERNAL CHAMBER AT ONE END THEREOF AND AN ELONGATED RIGID HOLLOW SECTION EXTENDING FROM THE CHAMBER WITH AN OPENING IN AN END THEREOF REMOTE FROM THE CHAMBER, MEANS DEFINING OPPOSED ELONGATED SLOTS FROM THE CHAMBER, MEANS DEFINING OPPOSED ELONGATED SLOTS IN THE WALL OF SAID HOLLOW SECTION EXTENDING FOR SUBSTANTIALLY THE ENTIRE LENGTH OF SAID ELONGATED SECTION, A DRIVE PISTON SLIDABLY GUIDED WITHIN SAID ELONGATED FRAME SECTION WITH A PAIR OF OPPOSITELY EXTENDING EARS EXTENDING THROUGH SAID ELONGATED SLOTS, MEANS EXTENDING FROM SAID CHAMBER TO SAID DRIVE PISTON FOR RECIPROCATING SAID PISTON, A DRIVEN TOOL CARRYING PISTON SLIDABLY GUIDED IN SAID ELONGATED FRAME SECTION BETWEEN THE DRIVE PISTON AND SAID FRAME OPENING WITH A PAIR OF OPPOSITELY EXTENDING EARS EXTENDING THROUGH SAID ELONGATED SLOTS, A FIRST GROUP OF SPRINGS RETAINED AND EXTENDING BETWEEN ALIGNED EARS OF SAID DRIVE AND DRIVEN PISTONS FOR TRANSMITTING FORCE FROM THE DRIVE PISTON TO THE DRIVEN PISTON, A PAIR OF SPRING COLLARS SPACED FROM AND AT THE SIDES OF THE DRIVEN PISTON EARS OPPOSITE FROM THE DRIVE PISTON EARS, MEANS CONNECTING SAID COLLARS TO THE DRIVE PISTON, AND A SECOND GROUP OF SPRINGS RETAINED AND EXTENDING BETWEEN THE COLLARS AND DRIVEN PISTON EARS FOR OPPOSING MOVEMENT OF THE LATTER EARS AND COLLARS TOWARD EACH OTHER.