Patent ID: 6557593
Filing Date: 2003-05-06
Classification: A61M,B01J,B01L,B67D,C23C,F17C,G01F,G05D,H01J

Abstract:
A system comprising:a first container having a first inlet port, a first outlet port, and a first level sensor for generating a low level signal and a high level signal; a second container having a second inlet port, a second outlet port, and a second level sensor for generating a low level signal; a refill line removably coupled to the first inlet port and the second outlet port; an inert gas pressure source coupled to an interior of the second container; a control unit coupled to the first level sensor, the second level sensor and a first valve in said refill line, the first valve to allow the transfer of high purity chemicals to the first container in response to the control unit receiving the low level signal from the first level sensor and to terminate the transfer of high purity chemicals in response to said control unit receiving the high level signal from the first level sensor; and a manifold, comprising: a carrier gas line for providing inert gas from the inert gas pressure source to the second container; a second valve disposed within said refill line to isolate the second outlet port from a portion of the refill line; a third valve disposed within said carrier gas line isolate said inert gas pressure source from the second inlet port; means for connecting a vacuum source to said carrier gas line; and means for bypassing said inert gas pressure source and the vacuum source to at least a portion of said refill line not isolated by said second valve.