Patent ID: 7198056

Claim:
A high purity chemical delivery system connected to a high purity chemical container, the high purity chemical container having a push gas inlet port and a high purity chemical delivery port, the high purity chemical delivery system comprising: a first manifold comprising, first means for connecting the first manifold to the high purity chemical delivery port, second means for connecting the first manifold to a second manifold, third means for connecting the first manifold to a third manifold, a first diaphragm valve having one side connected to the first means for connecting and to a second diaphragm valve, and having the other side connected to the second means for connecting, and a second diaphragm valve having one side connected to the first diaphragm valve, and having the other side connected to the third means for connecting; the second manifold comprising, fourth means for connecting the second manifold to the third manifold, fifth means for connecting the second manifold to the push gas inlet port, a third diaphragm valve having one side connected to the second means for connecting and to a fourth diaphragm valve, and having the other side connected to a high purity chemical utilization point, a fourth diaphragm valve having one side connected to the third diaphragm valve, and having the other side connected to a fifth diaphragm valve and to a sixth diaphragm valve, the fifth diaphragm valve having one side connected to the fourth diaphragm valve, and the other side connected to a seventh diaphragm valve; the seventh diaphragm valve having one side connected to the fifth diaphragm valve and to the fourth means for connecting, and having the other side connected to a vacuum transducer, the sixth diaphragm valve having one side connected to the fourth diaphragm valve and to an eighth diaphragm valve, and the other side connected to a ninth diaphragm valve, the eight diaphragm valve having one side connected to the sixth diaphragm valve and to a tenth diaphragm valve, and having the other side connected to a pressure transducer, the ninth diaphragm valve having one side connected to the fifth means for connecting, and having the other side connected to a source of push gas, and the tenth diaphragm valve having one side connected to the eighth diaphragm valve, and having the other side connected to a source of purge gas; and the third manifold comprising, an eleventh diaphragm valve having one side connected to the third means for connecting, and having the other side connected to a twelfth diaphragm valve, the twelfth diaphragm valve having one side connected to the fourth means for connecting, and having the other side connected to the eleventh diaphragm valve and to a thirteenth diaphragm valve, and the thirteenth diaphragm valve having one side connected to the twelfth diaphragm valve, and having the other side connected to an outer source, wherein the outer source is a source of vent or a source of vacuum.