US 4,732,037 AGranted

Automated rainwater collector

AssigneeCalifornia Institute of Technology

InventorsBruce C. Daube, Jr., Richard C. Flagan

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Abstract

An automated rain water collector is disclosed to collect a plurality of successive rain water samples, comprised of a reservoir into which rain water is collected and discharged, and a motor-driven turntable which holds a plurality of sample bottles. When the reservoir is filled to a predetermined volume, means, such as a liquid level sensor, actuates a valve to open same and discharge the liquid sample from the reservoir into one of the bottles at a filling station on the turntable. The valve then closes and the turntable rotates to index the next bottle beneath the reservoir at the filling station, and the operation is repeated to fill the latter bottle. When all of the bottles on the turntable have been filled, the indexing means is deactivated and liquid accumulating in the reservoir is diverted to an overflow bottle.

Claims9

Dependent claims

A rainwater collector for automating the collection of succesive rainwater samples which comprises

rainwater collecting means,
a reservoir in fluid comnmranicating with said rainwater collecting means,
a carousel,
means supporting said carousel for limited rotation,
a rack on said carousel adapted to support a plurality of first sample bottles in a circle adjacent the outer periphery of said carousel and a plurality of second smaller sample bottles in concentric circles adjacent said circle of first containers,
a fill station on said carousel wherein one of said first bottles and a plurality of said second bottles in said concentric circles are in a row,
a discharge line from said reservoir,
a first valve in said discharge line adapted to discharge liquid from said reservoir into one of said first bottles at said fill station,
a second valve in said discharge line adapted to discharge liquid from said reservoir into the second bottles in said row at said fill station,
a liquid level sensor to monitor collection of a predetermined volume of rainwater in said reservoir,
means associated with said liquid level sensor to actuate said first valve means when said predetermined volume of rainwater has been collected in said reservoir to open and fill a first bottle at said fill station,
timer means for actuating said second valve when said first valve has been actuated, to open and fill the second bottles in said row at said fill station, said timer means closing said second valve after a pre-set time interval, and said means for actuating said first valve closing same after a longer pre-set time interval,
driving means to actuate the carousel to index a successive row of a first bottle and a plurality of second bottles at said fill station,
means for sensing the closing of said first valve to actuate said driving means to index a successive row of bottles at said fill station, said last-mentioned means including a counter for deactivating said driving and indexing means when all of the bottles on said carousel have been filled at said fill station,
an overflow tubing connected to the discharqe line from said reservoir, and
an overflow bottle connected to said overflow tube, for receiving liquid from said reservoir after deactivation of said driving and indexing means by said counter.

13 more elements

A rainwater collector for automating the collection of successive rainwater samples which comprises

rainwater collecting means,
a reservoir in fluid communication with said rainwater collecting means,
turntable means adapted to support a plurality of containers thereon,
means associated with said reservoir for automatically discharging a predetermined volume of rainwater from said reservoir into a predelected container on said turntable means,
means to actuate said turntable means to index a successive container to be filled into operative relation with said reservoir when said preselected container has received said predetermined volume of rainwater,
said means for automatically discharging a predetermined volume of rainwater from said reservoir including,
a first valve means,
a second valve means,
means for actuating said first valve means when said predetermined volume of rainwater has been collected in said reservoir to open and fill a first container at a fill station on said turntable,
timer means for actuating said second valve means when said first valve means has been actuated, to open and fill a second smaller container at said fill station on said turntable,
said timer means closing said second valve means after a pre-set time interval, and said means for actuating said first valve means closing same after a longer pre-set time interval, and
means for sensing the closing of said first valve means, to actuate said indexing means to index successive first and second containers for advancement to said fill station.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 07/028,555Filed 20 Mar 1987 · division
Priority: 27 May 1986
Granted: 22 Mar 1988
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

G01N 1/18
In the liquid or fluent state: with provision for splitting samples into portions
G01N 1/2202
In the gaseous state: involving separation of sample components during sampling
G01W 1/14
Meteorology: rainfall or precipitation gauges
B08B 2230/01
Other cleaning aspects applicable to all B08B range: cleaning with steam