Spray device for dishwashing apparatus

Claim 1

IN A DISHWASHING MACHINE HAVING A HOUSING DEFINING A CLEANSING CHAMBER AND MEANS FOR SUPPORTING ARTICLES TO BE CLEANSED IN SAID CHAMBER, AN IMPROVED ROTARY SPRAY DEVICE COMPRISING A HUB MEMBER HAVING A PLURALITY OF RADIALLY EXTENDING LIQUID PASSAGES, MEANS SUPPORTING THE CENTER OF SAID HUB MEMBER DEFINING AN AXIS OF ROTATION OF SAID HUB MEMBER EXTENDING VERTICALLY OF SAID CHAMBER, MEANS FORMING INLET PASSAGES IN SAID HUB MEMBER SPACED INWARD FROM THE PERIPHERY OF SAID HUB MEMBER AND CONNECTED TO SAID LIQUID PASSAGES, A NOZZLE MEMBER MOUNTED TO EXTEND RADIALLY OUTWARD FROM SAID HUB MEMBER AT THE RADIALLY OUTWARD END OF EACH OF SAID LIQUID PASSAGES, EACH OF SAID NOZZLE MEMBERS INCLUDING A CURVED FLOW DIRECTING SCOOP HAVING AN INLET PORTION FITTED TO SAID HUB MEMBER AND OF APPROXIMATELY THE SAME CROSS-SECTIONAL DIMENSION AS THE CORRESPONDING LIQUID PASSAGE, A DISCHARGE PORTION ON EACH OF SAID SCOOPS EXTENDING TRANSVERSELY TO THE ASSOCIATED SAID NOZZLE MEMBER TO DIRECT ALL OF THE LIQUID FLOWING FROM THE ASSOCIATED SAID NOZZLE MEMBER IN A DIRECTION GENERALLY PARALLEL TO SAID AXIS OF ROTATION AND TO CONFINE THE FLOW OF DISCHARGED LIQUID ESSENTIALLY TO WITHIN A CYLINDRICAL PATH WHICH COINCIDES WITH THE CIRCULAR PATH OF TRAVEL OF THE RESPECTIVE DISCHARGE PORTIONS ABOUT SAID AXIS OF ROTATION, AND A CURVED GUIDING WALL EXTENDING BETWEEN SAID INLET PORTION AND SAID DISCHARGE PORTION OF EACH SAID SCOOP, SAID GUIDING WALL BEING CURVED THROUGH APPROXIMATELY 90* TO CHANGE THE DIRECTION OF LIQUID PASSING THERETHROUGH, SAID NOZZLE MEMBER HAVING A FLOW DIRECTING SURFACE EXTENDING TOWARD SAID GUIDING WALL OF THE ASSOCIATED SAID SCOOP TO DIRECT SUBSTANTIALLY THE ENTIRE FLOW OF LIQUID THERETHROUGH AGAINST THE WALL SURFACE OF THE ASSOCIATED SAID SCOOP TO CAUSE THE LIQUID TO FLOW ALONG SAID CURVED WALL OF SAID SCOOP AND TO LEAVE SAID DISCHARGE PORTION OF SAID SCOOP IN A RELATIVELY WIDE STREAM.