Sample collector

Details Sample collector Sample collector

1981-11-02

1983-11-15

Bell, Jr., Houston S.

Fluent material handling, with receiver or receiver coacting mea

With means to move supply means and/or receiver to, from or...

Movably mounted supply

222 14, 73 3, B65B 304, B67C 328

Patent

active

044150113

ABSTRACT:
To collect a series of liquid samples each of which has a fixed volume in a corresponding series of sample bottles, a sample collector includes a control circuit that initiates the sampling at preset time intervals or each time a preset volume of liquid has flowed past the collector as indicated by a flow meter. To control the volume of each sample, an optical liquid interface detector within the flow passage of the sample collector initiates counting of the revolutions of the pump and after a pre-selected number of counts, the control circuit terminates the pumping. The optical liquid interface detector includes a light-emitting diode on one side of the flow passage and a phototransistor on the opposite side to detect the interface of the liquid.

REFERENCES:
patent: 4331262 (1982-05-01), Snyder et al.

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