Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
September 4, 2007
Patent Application Number
11128515
Date Filed
May 13, 2005
Patent Primary Examiner
Patent abstract
The present invention provides a gas transfer apparatus designed for enhanced purging of a pigtail conduit and a process for effecting such purging. The apparatus comprises a surge chamber having a first end, a body and a second end, the first end in communication with the pigtail conduit. A body section of the surge chamber has a cross-section larger than the cross-section of the pigtail conduit. The second end is in communication with a vessel containing a gas source. The apparatus includes a purge gas source for delivery of a purge gas to the pigtail conduit whereby during an alternating cycle of pressurization of the pigtail conduit with the purge gas and depressurization, impurities can be removed from within the pigtail conduit.
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