Non-spillable storage battery container with combination means for venting and filling

Claim 1

IN COMBINATION A STORAGE BATTERY OF THE CLASS DESCRIBED COMPRISING A CASING, BATTERY PLATES AND A FLUID BODY OF ELECTROLYTE CONTAINED IN THE CASING AND NORMALLY OVERLYING THE TOPS OF THE BATTERY PLATES, SAID CASING HAVING AN APERTURE THEREIN LOCATED ABOVE THE LEVEL OF THE ELECTROLYTE, CONDUIT MEANS POSITIONED IN SAID APERTURE AND EXTENDING WITHIN SAID CASING FOR RECEIVING A FILLING TUBE OF CIRCULAR CROSS SECTION CONDUCTING BATTERY FILLING MATERIAL INTO THE CASING AT A POINT ABOVE THE ELECTROLYTE, SAID CONDUIT MEANS BEING INTERNALLY DEFINED BY A PLURALITY OF ANGULARLY DISPOSED LONGITUDINALLY EXTENDING WALLS, WHEREBY LONGITUDINAL GAS PASSAGES ARE FORMED BETWEEN THE INTERNAL WALL OF SAID CONDUIT AND SAID TUBE WHEN SAID FILLING TUBE IS POSITIONED IN SAID CONDUIT MEANS, AND A WATER AND VAPOR TRAP MOUNTED UPON AND ENCLOSING THE INNER END PORTION OF SAID CONDUIT FOR PREVENTING THE ESCAPE OF ELECTROLYTE IN DROPLETS AND VAPOR OUTWARDLY THROUGH SAID CONDUIT, SAID TRAP BEING FORMED WITH AN OPENING ALIGNED WITH THE PASSAGE IN THE CONDUIT MEANS, SAID OPENING BEING OF GREATER DIAMETER THAN THE DIAMETER OF THE OPENING IN SAID CONDUIT TO PERMIT THE PASSAGE OF THE FILLING TUBE THERETHROUGH FOR DISCHARGE BY THE FILLING TUBE OUTWARDLY BEYOND THE TRAP.