Measuring and testing – Sampler – sample handling – etc. – Automatic control
Patent
1984-12-05
1986-05-20
Myracle, Jerry W.
Measuring and testing
Sampler, sample handling, etc.
Automatic control
7386323, 7386434, 128716, G01N 124
Patent
active
045892920
ABSTRACT:
A process for sampling ambient air at a work place comprises continually withdrawing by means of a pump, a sample of ambient air in the proximity of the respiratory tract of an individual worker, filtering the aspirated air for subsequent analysis of filtered-out particles, picking-up the cardiac rhythm of the individual and controlling the flow of air of the pump by a signal modulated by the cardiac rhythm of the individual. Apparatus for carrying out the process copmrises a sampling tube, a motor driven pump for drawing a sample of ambient air in through the sampling tube, a filter associated with the sampling tube for filtering the air sample, a photo electric device for picking up the cardiac rhythm of the individual and a control circuit for controlling the flow-rate of the pump by a signal modulated by the cardiac rhythm of the individul. The pump motor is further controlled by a pressure pick-up downstream of the filter to correct for flow attenuation by the filter.
REFERENCES:
patent: 3850036 (1974-11-01), Sanctuary et al.
patent: 4080832 (1978-03-01), Moody et al.
patent: 4183247 (1980-01-01), Allen et al.
patent: 4202212 (1980-05-01), Allen et al.
patent: 4245669 (1981-01-01), Schmidt
patent: 4246788 (1981-01-01), Olin et al.
patent: 4254657 (1981-03-01), Leichnitz et al.
patent: 4269059 (1981-05-01), Baker
patent: 4389903 (1983-06-01), Bertone et al.
patent: 4432248 (1984-02-01), Lalin
patent: 4452252 (1984-06-01), Sackner
"A Personal Air Sampling Pump for Hospital Operating Staff"; Journal of Medical Engineering and Technology; vol. 2, No. 6, pp. 310-312; Nov. 1978; K. B. Carter et al.
Delhaye Jean-Noel
Kielczewska Elizabeth
Adams Bruce L.
Burns Robert E.
Lobato Emmanuel J.
Myracle Jerry W.
Noland Tom
LandOfFree
Process and apparatus for sampling ambient air at a work place does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process and apparatus for sampling ambient air at a work place, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and apparatus for sampling ambient air at a work place will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2102572