Foot for a portable pressurized gas cylinder

A portable gas cylinder comprising:

• a gas tank having an upper portion, a lower portion, and a collar, the collar including a base secured to the lower portion, a flange that extends around and radially outwardly from the base, and a plurality of notches circumferentially spaced around the flange;
• and
• a foot ring configured to be attached to the gas tank, the foot ring including:
• a base having an inner and outer surface, a central portion, and an outer peripheral portion;
• a plurality of circumferentially spaced deflectable longitudinal lock tabs that extend around the base for securing the foot ring to the tank, each of the circumferentially spaced deflectable longitudinal lock tabs having a first projection with an inner surface configured to abut a radially outer surface of the flange, and a catch that extends from the respective first projection for engaging an underside of the flange to secure the foot ring to the tank;
• and
• a plurality of circumferentially spaced deflectable rotational lock tabs that extend around the base for preventing rotational movement of the foot ring relative to the tank, each of the circumferentially spaced deflectable rotational lock tabs having a second projection configured to be received in a respective one of the notches.