Gas analyzer cuvettes

Details Gas analyzer cuvettes Gas analyzer cuvettes

1994-09-02

1997-04-01

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

2503385, G01N 2161

Patent

active

056169230

ABSTRACT:
Gas analyzer systems which include: (1) a transducer for outputting a signal indicative of the concentration of a specified gas in a sample which may contain that gas, and (2) an airway adapter or cuvette with a flow passage for confining the sample to a particular path traversing the transducer. The cuvettes feature radiant energy transmitting windows which are flush mounted in apertures on opposite sides of the cuvette flow passage and are fabricated from a polymer such as biaxially oriented polypropylene which is malleable, yet resistant to wrinkling, warping, and other forms of distortion. Retainer rings keep the windows flat and distortion free with an accurately reproducible spacing between the windows.

REFERENCES:
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patent: 5067492 (1991-11-01), Yelderman et al.
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patent: 5213109 (1993-05-01), Susi
patent: 5261415 (1993-11-01), Dussault
patent: 5296706 (1994-03-01), Braig et al.
patent: 5340986 (1994-08-01), Wong
Solomon, "A Reliable, Accurate CO.sub.2 Analyzer for Medical Use", Hewlett-Packard Journal, Sep. 1981, pp. 3-11.

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