Automated entrainment abundance sampler

Details Automated entrainment abundance sampler Automated entrainment abundance sampler

1978-02-16

1979-03-27

Queisser, Richard C.

Measuring and testing

Measuring vessel

210262, 210411, 210433R, G01N 114

Patent

active

041459288

ABSTRACT:
An automated entrainment abundance sampler for the collection of ichthyoplankton specimens and its operation is disclosed. An inverted conical screen or net is utilized to collect specimens from water supplied by a suitable pump. After a set time period, the collected specimens are further concentrated in a secondary concentrator and transferred to a sample container. The conical screen is rinsed to insure that all the specimens are transferred to the secondary collector which is, in turn, rinsed to further insure that all the specimens are carried to the sample container. A suitable control system is provided to allow the sampler system to operate automaticaly in the collection of specimens over a preselected period of time.

REFERENCES:
patent: 1191741 (1916-07-01), Scull
patent: 1780774 (1930-11-01), White
patent: 2066479 (1937-01-01), MacIsaac
patent: 2732946 (1956-01-01), Schaub
patent: 3310984 (1967-03-01), Swanson
patent: 3879286 (1975-04-01), Berriman

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