Purge and trap concentrator with improved drying

Details Purge and trap concentrator with improved drying Purge and trap concentrator with improved drying

2005-08-16

2005-08-16

Spitzer, Robert H. (Department: 1724)

Gas separation: processes

With control responsive to sensed condition

Temperature sensed

C095S087000, C095S126000, C096S102000, C096S105000, C096S112000, C096S118000

Reexamination Certificate

active

06929678

ABSTRACT:
A purge and trap concentrator and a method for drying a stream of sample gas in a gas analysis instrument. A dryer tube has an inlet that receives a stream of sample gas during a drying interval and receives a stream of dry gas during a regeneration interval. The dryer tube also has an outlet and an interior passageway between the inlet and an outlet. Support material comprising polymer sorbent is placed in the interior passageway and provides a support surface area for a hygroscopic coating comprising lithium chloride. A controller controls a heater to increase the temperature of the dryer tube to between 100 and 300 degrees centigrade during the regeneration interval and controls the heater to decrease the temperature of the dryer tube to below 100 degrees centigrade during the drying interval.

REFERENCES:
patent: 4915715 (1990-04-01), Oshima et al.
patent: 5497561 (1996-03-01), Murray et al.
patent: 5616158 (1997-04-01), Biendarra et al.
patent: 6223584 (2001-05-01), Mustacich et al.
patent: 6358300 (2002-03-01), Fornof et al.
patent: 6423120 (2002-07-01), Nickerson et al.
patent: 6541272 (2003-04-01), Mitra
patent: 6656738 (2003-12-01), Vogel et al.
Web page entitled “SKC Thermal Desorption Tubes,” dated Mar. 30, 2002, SKC Corporate Headquarters in the USA; pp. 1-5.

Affiliated with

Also associated with

Rating

Purge and trap concentrator with improved drying does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Purge and trap concentrator with improved drying, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Purge and trap concentrator with improved drying will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3486203