Patent ID: 7275569

Claim:
A system for dispensing hydrogen gas, said system comprising: a hydrogen source configured to provide diatomic hydrogen gas; a pressurizing apparatus configured to obtain a result of said diatomic hydrogen gas being pressurized; a pressure vessel configured to store said diatomic hydrogen gas, said pressure vessel being configured in the shape of a cylinder oriented substantially vertically and having a top portion and a bottom portion; said bottom portion of said pressure vessel having a substantially sealed secondary containment forming an interstitial space between said bottom portion and said secondary containment; and piping configured to convey said diatomic hydrogen gas from said hydrogen source, to said pressure vessel, and wherein said piping comprises at least one supply pipe configured to carry said diatomic hydrogen gas to said pressure vessel, said supply pipe being connected to said pressure vessel substantially near said top portion of said pressure vessel; and a vent pipe configured to vent said diatomic hydrogen gas to said atmosphere near or above said top portion, said vent pipe being oriented with a substantially vertical axis and said supply pipe being at least partially located inside said vent pipe.