Measuring and testing – Sampler – sample handling – etc. – Automatic control
Patent
1984-04-25
1986-02-11
Levy, Stewart J.
Measuring and testing
Sampler, sample handling, etc.
Automatic control
7386323, 7386312, G01N 124
Patent
active
045692351
ABSTRACT:
A portable, sequential air sampler having an easily transportable housing containing therein a plurality of interrelated components which allow the air sampler to operate by either battery or "line" power as well as maintain the flow rate through the sampling media substantially constant. The components include a vacuum pump and rotary valve which are capable of sequentially drawing air through the sampling media. In addition, a flow rate control system is operably connected to the vacuum pump in order to maintain the substantially constant flow rate through the sampling media. The air sampler can vary initiation of the sampling operation from 1-999 minutes while varying the sequence of sampling from 1-99 minutes, and, yet, maintai substantially constant air flow throughout the air sampling procedure.
REFERENCES:
patent: 1455263 (1923-05-01), Oberfell
patent: 3276241 (1966-10-01), Hubner
patent: 3299700 (1967-01-01), Stout, Jr.
patent: 3395516 (1968-08-01), Schecter et al.
patent: 3417605 (1968-12-01), Hahn
patent: 3540261 (1970-11-01), Scoggins
patent: 3593583 (1971-07-01), Anderson et al.
patent: 3657920 (1972-04-01), Teel et al.
patent: 3731539 (1973-05-01), Brittan et al.
patent: 3884081 (1975-05-01), Griffith
patent: 3903745 (1975-09-01), Bolser
patent: 3921456 (1975-11-01), Newcomb, Jr. et al.
patent: 3965748 (1976-06-01), Boubel et al.
patent: 3995494 (1976-12-01), Muller et al.
patent: 4091674 (1978-05-01), Amey
patent: 4170901 (1979-10-01), Conkle et al.
patent: 4254657 (1981-03-01), Leichnitz et al.
patent: 4269059 (1981-05-01), Baker
patent: 4388822 (1983-06-01), Heller
patent: 4389903 (1983-06-01), Bertone et al.
24-Port Sequential Air Sampler (National Environmental Instruments, Inc.) 1 page, undated.
Aeron Sequential Sampler (Precision Scientific Co.) 1 page, undated.
RAC Sequential Sampler (Research Appliance Co.) 2 pages, undated.
Conkle James P.
Hicks James A.
Sears Daniel
Erlich Jacob N.
Levy Stewart J.
Noland Tom
Singer Donald J.
The United States of America as represented by the Secretary of
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