Filler spout and safety closure for mobile water systems

Claim 1

IN A COMBINATION WITH A MOBILE VEHICLE HAVING A PRESSURIZED WATER SYSTEM WITH A TANK AND A FILLER TUBE CONNECTED THERETO, A FILLER SPOUT CONNECTED TO SAID TUBE AND MOUNTED ON AN OUTSIDE WALL OF THE VEHICLE, A HOSE CONNECTION NIPPLE OPENING THROUGH THE BOTTOM OF SAID SPOUT AND HAVING A THREADED FERRULE ADAPTED TO CONNECT A HOSE TO THE SPOUT, AN OUTWARDLY SEATING CHECK VALVE COOPERATIVE WITH THE INNER END OF SAID NIPPLE, THE TOP OF SAID SPOUT DEFINING AN INCLINED INTERNALLY THREADED FILLER OPENING SUBSTANTIALLY WIDER THAN SAID NIPPLE, A CAP REMOVABLY SEALED IN SAID OPENING AND HAVING AN INTERNALLY SHOULDERED BORE FORMED THERETHROUGH WITH A SAFETY VALVE SEAT AROUND THE OUTER END OF THE BORE, A VALVE ROD EXTENDING THROUGH SAID BORE AND HAVING A CONICAL SHOULDER OPPOSITE SAID SEAT, A SPIDER SEATED AGAINST THE SHOULDER IN SAID BORE AND GUIDINGLY RECEIVING THE INNER END OF SAID ROD, A NUT THREADED ON THE OUTER END OF SAID ROD AND CLAMPING A DEFORMABLE SEALING RING AGAINST THE SHOULDER ON THE ROD IN COOPERATIVE RELATION TO SAID SEAT, A CAP ADJUSTABLE ON THE INNER END OF SAID ROD, A SPRING COMPRESSED BETWEEN SAID CAP AND SAID SPIDER, THE OUTER END OF SAID ROD HAVING AN INTERNAL BORE FORMED THEREIN WITH AN OUTWARDLY SEATING CHECK VALVE THEREIN, AND THE MID-SECTION OF SAID ROD HAVING A PART FORMED THEREIN COMMUNICATING BETWEEN THE INNER END OF SAID INTERNAL BORE AND SAID BORE IN SAID CAP INWARDLY OF SAID SEALING RING.