Measuring and testing – Meteorology – Electric disturbance
Patent
1982-01-28
1985-11-26
Woodiel, Donald O.
Measuring and testing
Meteorology
Electric disturbance
7386463, 7386467, G01N 100
Patent
active
045548269
ABSTRACT:
An apparatus for the collection of water or other data from the aquatic environment, the apparatus being programmable to make such collections at any desired depths as it descends, and being capable of ascending to the surface under its own power, all functions being performed independently of any external connections or commands. The apparatus possesses a multifunctional mechanism which not only monitors the time and depth of the apparatus' descent, but also actuates the sequential sealing of the sampling chambers at each pre-programmed sampling depth and the release of ballast upon completion of sampling. This mechanism monitors time by monitoring the rate and distance of travel of a piston operating under constant force where the piston's rate of travel is governed by the rate at which it can draw water through an orifice.
REFERENCES:
patent: 3176517 (1965-04-01), Chelminski
patent: 3339417 (1967-09-01), Richard
patent: 3513709 (1970-05-01), Pullos
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