Measuring and testing – Sampler – sample handling – etc. – Capture device
Patent
1991-09-24
1994-01-11
Noland, Tom
Measuring and testing
Sampler, sample handling, etc.
Capture device
73 2801, 7386435, 7386301, G01N 124, G01N 1502
Patent
active
052770745
ABSTRACT:
Apparatus for volumetric sampling of a particle-laden gas includes a housing defining a sample chamber, a piston movable in the sample chamber so as to vary the volume of the sample chamber and a drive assembly for moving the piston in the sample chamber. The housing includes an inlet for admitting a particle laden gas into the sample chamber and an outlet for carrying the particle-laden gas from the sample chamber. The piston draws a predetermined volume of the particle-laden gas into the sample chamber through the inlet at a first flow rate during an intake phase, and exhausts the predetermined volume of the particle laden gas from the sample chamber through the outlet for analysis at a second flow rate during an exhaust phase. The outlet of the sample chamber is typically connected to a particle sizing instrument for measuring particles in the particle laden gas. The sample volume and the flow rate during the intake phase can be selected to match the parameters of the device or process being analyzed. The apparatus is useful, for example, in analyzing medication inhalers and in pollution control sampling.
REFERENCES:
patent: 3632210 (1972-01-01), Rich
patent: 3854321 (1974-12-01), Dahneke
patent: 3888109 (1975-06-01), Sharki et al.
patent: 4079622 (1978-03-01), Cocola et al.
patent: 4151742 (1979-05-01), Howlett et al.
patent: 4708013 (1987-11-01), Landis
patent: 4836039 (1989-06-01), de Silva et al.
patent: 4895034 (1990-01-01), Poole
patent: 4917494 (1990-04-01), Poole et al.
patent: 4938592 (1990-07-01), Poole et al.
Lisowski Charles E.
Poole Trent A.
Amherst Process Instruments, Inc.
Noland Tom
LandOfFree
Variable volume sampling chamber does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Variable volume sampling chamber, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable volume sampling chamber will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1624109