Air cooled bearing housing

Claim 1

IN A CENTRIFUGAL PUMP HAVING A PUMP HOUSING, FLUID INLET MEANS AND FLUID OUTLET MEANS FOR SAID HOUSING, SAID PUMP HOUSING PROVIDING A SHAFT OPENING THROUGH A WALL THEREOF, A ROTARY SHAFT EXTENDING THROUGH SAID OPENING AND PROJECTING FOR A SUBSTANTIAL DISTANCE TO ONE SIDE OF SAID PUMP HOUSING, MEANS SEALING SAID SHAFT IN SAID OPENING, AN IMPELLER MOUNTED ON SAID SHAFT AND POSITIONED INSIDE OF SAID PUMP HOUSING FOR IMPELLING FLUID FROM SAID INLET MEANS TO SAID OUTLET MEANS, A BEARING HOUSING MOUNTED ON THE OUTSIDE OF SAID PUMP HOUSING AND ENCLOSING A PORTION OF SAID SHAFT THAT PROJECTS TO ONE SIDE OF SAID PUMP HOUSING, SAID BEARING HOUSING HAVING AN END REMOTE FROM SAID PUMP HOUSING, FIRST SHAFT BEARING MEANS SUPPORTED BY AND IN SAID BEARING HOUSING ADJACENT TO SAID OPENING, AND SECOND SHAFT BEARING MEANS SUPPORTED BY AND IN SAID HOUSING AND SPACED AXIALLY FROM SAID FIRST BEARING MEANS IN A DIRECTION AWAY FROM SAID OPENING, THE COMBINATION OF A PLURALITY OF AXIALLY DISPOSED, RADIALLY OUTWARDLY EXTENDING, RIBS DISPOSED CIRCUMFERENTIALLY ABOUT THE EXTERIOR OF SAID BEARING HOUSING, EACH OF SAID RIBS EXTENDING SUBSTANTIALLY PARALLEL TO SAID SHAFT AND HAVING ONE END ADJACENT TO SAID FIRST BEARING MEANS AND THE OTHER END ADJACENT TO SAID SECOND BEARING MEANS, A CUPLIKE COVER DISPOSED OVER THE END OF SAID BEARING HOUSING REMOTE FROM SAID PUMP HOUSING, SAID COVER BEING SUPPORTED BY SAID RIBS AND PROVIDING WITH SAID RIBS AND PORTIONS OF SAID BEARING HOUSING ADJACENT TO SAID RIB A PLURALITY OF SPACED DEFINING AIR OUTLETS FOR SAID COVER, SAID COVER HAVING A CENTRAL APERTURE THROUGH WHICH SAID SHAFT EXTENDS, AIR INLET MEANS IN SAID COVER ADJACENT SAID SHAFT, AN, AIR IMPELLER MOUNTED ON SAID SHAFT WITHIN SAID COVER AND ADJACENT TO SAID AIR INLET MEANS FOR DRAWING OUTSIDE AIR THROUGH SAID AIR INLET MEANS AND FLOWING IT OVER THE END OF SAID BEARING HOUSING BENEATH SAID COVER OUT OF SAID OUTLETS, AND OVER SAID RIBS AND THE EXTERIOR PORTIONS OF SAID HOUSING ADJACENT TO SAID RIBS FOR COOLING SAID BEARING HOUSING AND BOTH OF SAID BEARING MEANS, AND MEANS FOR COUPLING SAID SHAFT TO A DRIVER.