Spray device for dishwashing machines

Claim 1

FOR USE IN A DISHWASHING MACHINE, A FLUID SPRAY DEVICE COMPRISING A SPRAY TUBE OPENAT ONE END, CLOSED AT THE OTHER END AND FORMED WITH A PLURALITY OF SERIES OF PERFORATIONS, EACH SERIES EXTENDING THEREALONG IN A LINE PARALLEL TO THE TUBE''S LONGITUDINAL CENTRAL AXIS, SUPPORT MEANS AT OPPOSITE ENDS OF SAID TUBE FOR JOURNALING THE TUBE FOR OSCILLATORY MOTION OBOUT AND RECIPROCATION ALONG SAID AXIS, AN IMPELLER COMMUNICATING WITH THE OPEN END OF SAID TUBE AND HAVING A ROTOR ROTATABLE THEREIN ECCENTRICALLY RELATIVELY TO SAID TUBE, A CRANK EXTENDING RADIALLY FROM AND ROTATABLE WITH SAID ROTOR OUTSIDE SAID BODY AND CARRYING A PIN, AN ARM EXTENDING RADIALLY FROM SAID TUBE AND FORMED WITH A SLOT EXTENDING RADIALLY OF THE TUBE INTO WHICH SAID PIN EXTENDS, A CAM MOUNTED ADJACENT THE CLOSED END OF THE TUBE, AT LEAST ONE PART ON THE CLOSED END OF THE TUBE ADAPTED TO CONTACT SAID CAM, A SUMP, A CONDUIT EXTENDING BETWEEN SAID SUMP AND SAID IMPELLER BODY, AND A PUMP FOR SUPPLYING WASHING FLUID UNDER PRESSURE FROM SAID SUMP TO SAID BODY, WHEREBY THE ROTOR IS ROTATED BY SAID FLUID FLOWING INTO THE OPEN END OF THE TUBE AND THROUGH THE PERFORATIONS, THE PRESSURE OF THE FLUID UPON THE CLOSED END OF THE TUBE MAINTAINING SAID PART IN CONTACT WITH SAID CAM, AND SAID TUBE IS OSCILLATED BY SAID ROTOR AND IS AXIALLY RECIPROCATED BY SAID CAM DURING THE OSCILLATION.