The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 04, 2007
Filed:
May. 13, 2005
Joseph Raymond Barker, New Tripoli, PA (US);
Alexandre DE Almeida Botelho, Macungie, PA (US);
John Timothy Collins, Allentown, PA (US);
Andrew Joseph Toth, New Tripoli, PA (US);
Ronald Martin Pearlstein, Macungie, PA (US);
Joseph Raymond Barker, New Tripoli, PA (US);
Alexandre De Almeida Botelho, Macungie, PA (US);
John Timothy Collins, Allentown, PA (US);
Andrew Joseph Toth, New Tripoli, PA (US);
Ronald Martin Pearlstein, Macungie, PA (US);
Air Products and Chemicals, Inc., Allentown, PA (US);
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.