Patent ID: 6966348

Claim:
A purgeable container ( 10 ) for low vapor pressure, high purity chemicals for a high purity chemical delivery system, comprising: (a) a container ( 10 ) for containing a quantity of said low vapor pressure, high purity chemical having at least two ports ( 11 , 13 ) capable of receiving or dispensing said low vapor pressure, high purity chemical; (b) a first block diaphragm valve assembly ( 14 ) having first ( 75 ) and second ( 77 ) diaphragm valves, each diaphragm valve having a diaphragm ( 74 a ) and having a valve seat side ( 78 a ) and a diaphragm side ( 88 ), wherein the valve seat side ( 78 a ) of each diaphragm valve ( 75 ) is juxtaposed to the other valve seat side ( 78 ) of the other diaphragm ( 74 ), and each valve seat side of each diaphragm valve ( 75 , 77 ) positioned to have low vapor pressure, high purity chemical flow communication with a conduit ( 16 ) of said high purity chemical delivery system, and said diaphragm side ( 88 ) of said first diaphragm valve ( 75 ) having flow communication with a first ( 13 ) of said at least two ports, and said diaphragm side of said second diaphragm valve ( 77 ) positioned to have flow communication with a conduit ( 18 ) capable of a function selected from the group consisting of a source of vacuum, or a source of vent; (c) a second valve means ( 114 ) having flow communication with a conduit ( 118 ) capable of a function selected from the group consisting of a source of push gas, a source of vacuum, a dispense for low vapor pressure, high purity chemical; and (d) said second port ( 11 ) having flow communication with said container ( 10 ) and capable of a function selected from the group consisting of a source of vacuum to said container ( 10 ), delivering push gas to said container ( 10 ) and dispensing low vapor pressure, high purity chemical in a push gas from said container ( 10 ).