Aerator pump

Claim 1

AN AERATOR PUMP, COMPRISING: A VERTICAL HOLLOW CYLINDER HAVING AN IMPERFORATE CYLINDRICAL LOWER WALL PORTION AND AN ADJACENT CYLINDRICAL UPPER WALL PORTION, SAID UPPER WALL PORTION HAVING NARROW SUBSTANTIALLY CIRCUMFERENTIAL DISCHARGE SLOT MEANS EXTENDING PARTIALLY AROUND SAID CYLINDER, THE TERMINALS OF SAID SLOT MEANS BEING SPACED FROM EACH OTHER BY A WALL PORTION OF SAID CYLINDER WHEREBY TO PROVIDE A BREAK OR OPENING IN THE DOME-LIKE SHEET OF WATER DISCHARGEABLE FROM SAID SLOT MEANS, SAID OPENING COMMUNICATING BETWEEN THE ATMOSPHERE AND THE ZONE WITHIN SUCH DOME-LIKE SHEET OF WATER DISCHARGEABLE FROM SAID SLOT MEANS; A ROTATABLE SHAFT IN SAID CYLINDER; PROPELLER MEANS MOUNTED ON SAID SHAFT TO ROTATE THEREWITH AND DISPOSED ADJACENT THE LOWER PART OF SAID IMPERFORATE LOWER WALL PORTION THEREBY DEFINING A CYLINDRICAL IMPERFORATE WALL PORTION EXTENDING FROM A ZONE ADJACENT SAID PROPELLER MEANS TO SAID SLOT MEANS FOR AIDING IN IMPARTING AN ASCENDING SPIRAL ACTION TO WATER IN SAID CYLINDER, ACTED ON BY SAID PROPELLER MEANS, WHEREBY TO PROVIDE THE CENTRIFUGAL ENERGY FOR DISCHARGING SUCH WATER THROUGH SAID DISCHARGE SLOT MEANS, AND A TRUNNION PROJECTING LATERALLY FROM SAID CYLINDER; SUPPORT MEANS; AND BEARING MEANS ON SAID SUPPORT MEANS FOR ROTATABLY SUPPORTING SAID TRUNNION.