Air-stream sampling device

Details Air-stream sampling device Air-stream sampling device

1985-03-26

1989-08-29

Noland, Tom

Measuring and testing

Sampler, sample handling, etc.

Plural parallel systems

7386351, G01N 122, G01N 120

Patent

active

048605980

ABSTRACT:
A device for drawing a small representative sample of air from a laminar flow air stream, such as that flowing through a clean room, is provided, which comprises a gridwork of evenly-spaced tubes having regularly spaced orifices to sample representatively a laminar flow stream of air to determine the number of particles therein. The gridwork of tubes is sized and configured to leave the laminar flow of the air stream substantially undisturbed.

REFERENCES:
patent: 3777571 (1973-12-01), Jaeger
patent: 3842679 (1974-10-01), Baun et al.
patent: 3981193 (1976-09-01), Goulet
patent: 4061036 (1977-12-01), Le Gille
patent: 4602514 (1986-07-01), Kurrle et al.
patent: 4615224 (1986-10-01), Smith et al.
patent: 4624146 (1986-11-01), Nakagawa
"LEEM Vessel Internal Collection & Distribution Systems", 4 page advertisement by LEEM Filtration Products, Inc.; by Mar. 25, 1985.

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