Vibrator

Claim 1

A VIBRATOR, COMPRISING: SUPPORT MEANS ADAPTED TO BE ASSOCIATED WITH AN OBJECT TO BE VIBRATED AND INCLUDING FIRST AND SECOND AXIALLY SPACED WALLS AND SPACER STRUCTURE INTERMEDIATE AND SECURED TO SAID WALLS TO DEFINE A HAMMER CAGE, SAID FIRST WALL HAVING A CENTRAL OPENING THEREIN; A RECIPROCATABLE HAMMER CARRIED WITHIN THE CAGE FOR MOVEMENT ALTERNATELY IN OPPOSITE DIRECTIONS TO STRIKE AND REBOUND FROM THE SECOND WALL AND BIASED TOWARD THE FIRST WALL, SAID HAMMER HAVING FIRST AND SECOND AXIALLY OPPOSITE SIDES RESPECTIVELY FACING SAID FIRST AND SECOND WALLS AND SAID SECOND SIDE BEING ADAPTED TO STRIKE SAID SECOND WALL AND SAID FIRST SIDE INCLUDING PISTONS MEANS COMBINING WITH SAID FIRST WALL TO PROVIDE A FLUID-CHARGEABLE AND-DISCHARGEABLE CHAMBER WITH WHICH THE AFORESAID FIRST WALL OPENING COMMUNICATES; MEANS COAXIALLY CONNECTED TO THE SUPPORT MEANS AT THE SIDE OF THE FIRST WALL OPPOSITE TO THE CHAMBER AND COMBINING WITH THE FIRST WALL OPPOSITE TO THE CHAMBER CHARGEABLE AND-DISCHARGEABLE ACCUMULATOR, SAID MEANS INCLUDING A THIRD WALL AXIALLY SPACED FROM THE FIRST WALL; SLEEVE MEANS ON SAID THIRD WALL WITHIN THE ACCUMULATOR AND EXTENDING COAXIALLY TOWARD BUT SHORT OF SAID FIRST WALL OPENING; A VALVE PLUNGER CARRIED BY THE SLEEVE FOR MOVEMENT AXIALLY TOWARD AND AWAY FROM SAID FIRST WALL RESPECTIVELY IN CLOSING AND OPENING DIRECTIONS AS RESPECTS SAID FIRST WALL OPENING, SAID PLUNGER INCLUDING A STEM HAVING AN AXIALLY SLIDABLE, SUBSTANTIALLY FLUID-TIGHT FIT WITHIN THE SLEEVE AND FURTHER HAVING AN ENLARGED HEAD ADAPTED TO SEAT ON AND BE UNSEATED FROM SAID FIRST WALL OPENING, THE PORTION OF THE STEM WITHIN THE SLEEVE BEING OPEN TO ATMOSPHERE; MEANS BIASING THE PLUNGER IN ITS CLOSING DIRECTION; VALVEOPERATING MEANS FOR MOVING THE PLUNGER IN ITS OPENING DIRECTION; AND MEANS FOR DISCHARGING THE AFORESAID CHAMBER AFTER SAID HEAD SEATS ON SAID FIRST WALL OPENING SO AS TO ENABLE THE HAMMER TO REBOUND AND TO AGAIN UNSEAT SAID VALVE HEAD.