Water sample collecting device

Details Water sample collecting device Water sample collecting device

1977-04-18

1978-05-30

Yasich, Daniel M.

Measuring and testing

Measuring vessel

73300, 277 30, F16J 1532, G01N 110

Patent

active

040916766

ABSTRACT:
A water sample collecting device for obtaining a sample of water at a predetermined depth consisting of a tubular member with spherical valves at both ends and means for maintaining the valves in a closed position when launched, opening the valves after the device is descending in the water to permit flushing of the device until the device has reached the desired depth when a messenger causes the valves to rotate to the closed position at which time the device containing the sample of water is brought to the surface.

REFERENCES:
patent: 1838729 (1931-12-01), Andrews
patent: 2314372 (1943-03-01), Spilhaus
patent: 2391978 (1946-01-01), Kahl
patent: 3161053 (1964-12-01), Bell
patent: 3563265 (1971-02-01), Graham
patent: 3576309 (1971-04-01), Zawacke
patent: 3841156 (1974-10-01), Wolfe
patent: 4037477 (1977-07-01), Niskin

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