Tank vent assembly

Claim 1

A VENT ASSEMBLY FOR A TANK COMPRISING, IN COMBINATION, MEANS DEFINING AN OPENING IN SAID TANK WALL, A FIXED THREADED FERRULE ATTACHED TO SAID TANK WALL AT SAID TANK WALL OPENING AND EXTENDING EXTERIORLY OF SAID TANK, A NUT HAVING PERIPHERAL FLATS RELEASABLY ENGAGED ON SAID FIXED FERRULE, A T-SHAPED HOLLOW MEMBER, MEANS CONNECTING SAID T-SHAPED MEMBER TO SAID TANK WITH THE CENTRAL LEG PORTION THEREOF ALIGNED WITH SAID OPENING AND THE CROSS PORTION THEREOF DISPOSED INTERIORLY OF SAID TANK AND OPEN AT ITS OPPOSITE ENDS TO THE INTERIOR OF SAID TANK, AND A CAP MEANS OF GENERALLY INVERTED U-SHAPED DIAMETRICAL CROSS SECTION DISPOSED EXTERIORLY OF SAID TANK, SAID CAP MEANS FRICTIONALLY ENGAGING SAID NUT WITH THE LEG PORTION OF SAID CAP MEANS OVERLAPPING A PORTION OF SAID NUT AND FERRULE, THE BASE THEREOF IN ALIGNMENT WITH SAID TANK WALL OPENING AND WITH THE CAP MEANS SPACED FROM SAID FERRULE AND THE FLATS OF SAID NUT TO COOPERATE THEREWITH IN DEFINING A PASSAGE FOR INGRESS OF AIR TO AND EGRESS OF AIR FROM SAID TANK THROUGH SAID TANK WALL OPENINGS.