Gas separation: processes – With control responsive to sensed condition – Concentration sensed
Reexamination Certificate
2006-12-05
2006-12-05
Smith, Duane (Department: 1724)
Gas separation: processes
With control responsive to sensed condition
Concentration sensed
C095S046000, C095S241000, C095S266000, C096S006000, C096S156000, C096S193000, C118S610000
Reexamination Certificate
active
07144442
ABSTRACT:
A degassing device capable of regulating an amount of air dissolved in a liquid. A device for measuring amounts of dissolved oxygen measures the amount of oxygen dissolved in one of a coating liquid which has yet to be degassed, and is to be fed to a film degassing device, and a coating liquid which has been degassed and discharged from the film degassing device. Based on measured results, a control unit regulates the degree of opening of a vacuum valve so as to change the degree of degassing performed by the film degassing device, thereby suppressing fluctuations in an amount of oxygen dissolved in the coating liquid. A load never constantly acts on the film all the time, the film life can accordingly be extended, thus resulting in reductions in running costs.
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patent: 6740139 (2004-05-01), Russell et al.
patent: 2003/0029317 (2003-02-01), Russell et al.
patent: 9-253459 (1997-09-01), None
FLOM Corporation website, www.flom.co.jp , Degasser product information, copyright 2003.
Smith Duane
Theisen Douglas J.
Young & Thompson
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