Removable device for repeatedly pressurizing a container

Claim 1

A filling device for filling a container with a pressurized gas from a cartridge having a face portion, comprising in combination: a base for connection to the container, a housing including a first cavity operatively connected to said base for housing the cartridge containing the pressurized gas; a fluid passageway extending from said housing through said base for fluid communication with the interior of the container; means for puncturing the face of the cartridge to permit the gas contained therein to flow through said fluid passageway into the container; and valve means for controlling the flow of gas through said fluid passageway; wherein said valve includes a shaft which extends through said base to engage said fluid passageway; wherein said shaft includes a hole which is aligned with said fluid passageway when said valve is in the "on" position and is misaligned with said fluid passageway when the valve is in the "off" position; further including a pressure gauge for sensing the pressure on the gas contained within the container; wherein said pressure gauge includes an indicator rod to provide a visual indication of the pressure of the interior of the container; wherein said indicator rod of said pressure gauge is color coded to indicate over-charging, under-charging, and the desired pressure of the container.