Gas separation: apparatus – Solid sorbent apparatus – With programmed – cyclic – or time responsive control means
Reexamination Certificate
2005-05-24
2005-05-24
Lawrence, Frank M. (Department: 1724)
Gas separation: apparatus
Solid sorbent apparatus
With programmed, cyclic, or time responsive control means
C096S130000
Reexamination Certificate
active
06896721
ABSTRACT:
An oxygen concentrator is controlled during start-up to rapidly shuttle the sieve beds between communication with the pump and atmospheric pressure, so the pressure in the sieve beds is relieved while the pump motor is starting up. After the start-up period, the sieve beds are alternately connected to the pump and atmospheric pressure for longer continuous periods.
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Lawrence Frank M.
Quarles & Brady LLP
Thomas Industries Inc.
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