Method and apparatus for controlling the purity of oxygen...

Details Method and apparatus for controlling the purity of oxygen... Method and apparatus for controlling the purity of oxygen...

2011-01-11

2011-01-11

Bianco, Patricia M (Department: 3772)

Surgery

Respiratory method or device

Using liquified oxygen

C128S200240, C128S203250, C128S203260, C128S203270, C128S204150, C128S204170, C128S204180, C128S205110, C128S202260, C128S204250, C128S204260, C095S014000, C095S023000, C095S096000, C095S130000, C096S109000, C096S110000, C096S112000, C096S121000, C096S124000

Reexamination Certificate

active

07866315

ABSTRACT:
An oxygen concentrator comprises a plurality of adsorbent columns, each having an inlet, an outlet and abed of adsorbent material. The oxygen concentrator also includes a vacuum pump for removing separated nitrogen rich gas from the column inlets, a control valve for controlling flow of fluids in and out of the columns, and a breakthrough sensor for signaling the position of a mass transfer zone (MTZ), the breakthrough sensor controlling operation of the control valve as a function of the breakthrough sensor signal. An electric control module (ECM) receives the signal from the breakthrough sensor, and adjusts the control valve based on the signal.

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“AirSep lowers boom”, www.hmenews.com/2004.12/depts/vendors/vendors1.htm.

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