Atmospheric seal for glow discharge analytical instrument

Details Atmospheric seal for glow discharge analytical instrument Atmospheric seal for glow discharge analytical instrument

1995-02-24

1997-07-08

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

With sample excitation

356314, G01J 31443, G01N 2166

Patent

active

056467265

ABSTRACT:
This invention provides a gas atmosphere surrounding a seal between the face of a glow discharge lamp assembly and the sample surface to eliminate the possibility of the introduction of atmospheric gases into the glow discharge lamp. A groove concentric with the O-ring seal in the face of the glow discharge lamp is provided. This groove is supplied with gas slightly in excess of atmospheric pressure. This provides a gas blanket or jacket around the O-ring seal. Any leaks in the O-ring seal would draw the gas rather than atmospheric gases into the lamp. The incorporation of this modification is particularly important when a sample is being analyzed for elements which are also commonly present as atmospheric gases. The invention may be used on DC as well as RF glow discharge lamp assemblies.

REFERENCES:
patent: 3543077 (1970-11-01), Grimm
patent: 4799394 (1989-01-01), Barnett et al.
patent: 4845041 (1989-07-01), Scuitto et al.

Affiliated with

Also associated with

Rating

Atmospheric seal for glow discharge analytical instrument does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Atmospheric seal for glow discharge analytical instrument, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Atmospheric seal for glow discharge analytical instrument will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2411741