Gas separation: processes – With control responsive to sensed condition – Concentration sensed
Reexamination Certificate
2006-12-05
2011-12-06
Lawrence, Jr., Frank (Department: 1776)
Gas separation: processes
With control responsive to sensed condition
Concentration sensed
C204S157500, C204S158200, C204S277000, C205S633000
Reexamination Certificate
active
08070852
ABSTRACT:
The oxygen partial pressure control unit includes a gas purification section for purifying the gas having the oxygen partial pressure controlled within a range of from 0.2 to 10−30atm, and a tank for storing the purified gas produced by the gas purification section. The purified gas stored within the tank is supplied to the another unit. The oxygen partial pressure control unit includes a circulation circuit including the tank and the gas purification section. The gas filled in the tank20is caused to circulate along the circulation circuit, and the purified gas produced by the gas purification section is stored in the tank.
REFERENCES:
patent: 2008/0163608 (2008-07-01), Yacoub
patent: 2002-326887 (2002-11-01), None
patent: 2004-250283 (2004-09-01), None
International Search Report mailed Jan. 23, 2007 for International Application No. PCT/JP2006/324238.
International Preliminary Report on Patentability and Written Opinion of the International Searching Authority mailed Jun. 18, 2009 for International Application No. PCT/JP2006/324238.
Iwasaki Ryusuke
Matsushita Haruhiko
Nagasawa Toru
Nishimura Hiroshi
Canon Machinery Inc.
Lawrence, Jr. Frank
Wenderoth , Lind & Ponack, L.L.P.
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