Flow cell resistant to corrosive environments for fiber optic sp

Details Flow cell resistant to corrosive environments for fiber optic sp Flow cell resistant to corrosive environments for fiber optic sp

1990-06-29

1992-01-07

McGraw, Vincent P.

Optics: measuring and testing

Sample, specimen, or standard holder or support

Fluid containers

250343, 250576, G01N 2109

Patent

active

050784935

ABSTRACT:
A flow cell for use in highly corrosive environments is constructed from a cross union and contains opposing probes each with an external sapphire window which is sealed into a metal tube contained in each probe with melted glass and an optional plastic seal over the melted glass. Each portion of the cross union containing a probe has a right angle shoulder which abuts the end of the tube containing the sapphire window. An O-ring gasket is positioned between the right angle shoulder and tube end to form a tight cover over the glass seal when the probes are assembled in the flow cell, thereby protecting the glass seal and plastic seal from the corrosive environment.

REFERENCES:
patent: 3177706 (1965-04-01), Shuman et al.
patent: 3573470 (1971-04-01), Haley
patent: 4008397 (1977-02-01), Zdrodowski
patent: 4260257 (1981-04-01), Neeley et al.
patent: 4540280 (1985-09-01), Anderson et al.
patent: 4588893 (1986-05-01), Vidrine et al.
patent: 4786171 (1988-11-01), LeFebre et al.

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