Vibrator

Claim 1

AN ECCENTRIC ROTARY VIBRATOR COMPRISING: A HOUSING; AN INTERNAL CYLINDRICAL RACE IN SAID HOUSING; A PAIR OF END RESTRAINTS IN SAID HOUSING, SAID RACE AND RESTRAINTS AT LEAST IN PART DEFINING AN INTERNALY CAVITY THEREIN, SAID CAVITY HAVING AN AXIS; A ROTOR INSIDE SAID CAVITY HAVING AN AXIS, AND LESSER LATERAL DIMENSIONS THAN THE RACE, AN EXTERIOR PERIPHERAL SURFACE, AT LEAST A PORTION THEREOF BEINGH A PERIPHERAL CYLINDRICAL BEARING SURFACE ADAPTED TO BEAR AGAINST THE RACE IN ROLLING CONTACT THEREWITH, SAID ROTOR HAVING AN AXIAL DISTRIBUTOR PASSAGE OPENING AT ONE END THEREOF, A PLURALITY OF SUBSTANTIALLY RADIALLY EXTENDING PLUNGER PASSAGES OPENING ONTO SAID PERIPHERAL SURFACE, A PLUNGER SUPPLY PASSAGE INTERCONNECTING EACH OF SAID PLUNGER PASSAGES TO THE DISTRIBUTOR PASSAGE, A SUPPLY OPENINGS BEING OF SAID PLUNGER PASSAGES, SAID SUPPLY OPENINGS BEING ANGULARLY SPACED APART AROUND SAID DISTRIBUTOR PASSAGE, EACH PLUNGER PASSAGE BEING IN FLUID COMMUNICATION WITH A RESPECTIVE SUPPLY OPENING, SAID SUPPLY OPENINGS BEING SYMMETRICALLY DISPOSED AROUND THE ROTOR AXIS; A DISTRIBUTOR COMPRISING AN OFFSET ELEMENT JOURNALED TO THE HOUSING AND IN THE DISTRIBUTOR PASSAGE, SAID DISTRIBUTOR HAVING PRESSURE PORT MEANS AND EXHAUST PORT MEANS THEREIN ADAPTED ALTERNATIVELY AND SEQUENTIALLY TO OVERLAP THE SUPPLY OPENINGS; A PRESSURE PASSAGE AND AN EXHAUST PASSAGE IN THE DISTRIBUTOR, COMMUNICATING RESPECTIVELY WITH THE PRESSURE AND EXHAUST PORT MEANS IN THE DISTRIBUTOR; AND A PLUNGER IN EACH OF SAID PLUNGER PASSAGE ADAPTED TO BE EXTENDED TO CONTACT THE HOUSING, AND TO BE RETRACTED THEREBY TO ROLL THE ROTOR IN THE RACE BY VIRTUE OF ALTERNATE CONNECTIONS OF PLUNGER PASSAGES TO THE PRESSURE AND EXHAUST PORT MEANS OF THE DISTRIBUTOR THROUGH THE RESPECTIVE SUPPLY OPENINGS.