Liquid purification or separation – Processes – Including geographic feature
Patent
1990-11-13
1992-09-15
Dawson, Robert A.
Liquid purification or separation
Processes
Including geographic feature
73 1G, 73 191, 7386302, 7386323, 166264, 166265, 210170, 210188, 436 39, 436178, B02D 1900, E21B 4908
Patent
active
051475618
ABSTRACT:
A sampling device for sealed positioning within the casing of a well contains a stripping chamber for stripping a ground water sample of its volatile compounds at or near the point of collection. In one embodiment, the stripping chamber includes a piston which is raised above the top surface of the sample to create a head space, and an injector for injecting inert gas into the sample, causing the volatile compounds to be released into the head space, whereupon they exit the chamber via a vapor outlet duct leading out of the well. In a second embodiment, the stripping chamber includes a tube having a sidewall formed of a semi-permeable membrane, and an injector which injects an inert gas into the bore of the tube. The device may also include a sensor mounted within the stripping chamber, and a valve for directing a calibration gas into the chamber.
REFERENCES:
patent: 4003257 (1977-01-01), Fletcher et al.
patent: 4630677 (1986-12-01), Jakob
patent: 4717473 (1988-01-01), Burge et al.
patent: 4764272 (1988-08-01), Fox, Sr.
patent: 4821585 (1989-04-01), Kempe
patent: 4857473 (1989-08-01), Margaritz et al.
patent: 4922747 (1990-05-01), Wall
patent: 5010776 (1991-04-01), Lucero et al.
Burge Russell
Burge Scott R.
Dawson Robert A.
Drudge Joseph
Flickinger Don J.
Gresham Lowell W.
Meschkow Jordan
LandOfFree
Device for sampling and stripping volatile chemicals within well does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for sampling and stripping volatile chemicals within well, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for sampling and stripping volatile chemicals within well will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-734360