초록 ▼

Apparatus for taking water samples from wells, streams, lakes, or the like wherein the water sample is to be duplicative of the water that is being tested. The apparatus consists of a carrier adapted to be lowered on a line to any depth into the water body to be sampled. The carrier is hollow and ha

Apparatus for taking water samples from wells, streams, lakes, or the like wherein the water sample is to be duplicative of the water that is being tested. The apparatus consists of a carrier adapted to be lowered on a line to any depth into the water body to be sampled. The carrier is hollow and has an internal load carrying cavity in which a unit consisting of an isolation vial filled with distilled water and a sample collection vial which is evacuated and positioned within the isolation vial are loaded. Both vials are equipped with closing plugs therein which contain septums and a hollow needle structure is provided which pierces the isolation vial septum and extends into but does not pierce the sample collecting septum. In response to a jerk on the line, the carrier exerts a force on the needle unit which causes it to pierce the spectum in the sample vial thereby communicating the interior of the sample vial with the water to be sampled, with the result that a sample of the water to be tested rushes into the sample vial. The lowing line can then be raised so as to raise the carrier with the desired water sample therein for subsequent testing purposes.

대표청구항 ▼

Water sampling apparatus comprising a carrier adapted to be lowered into water to be sampled, said carrier being hollow and having an internal load carrying cavity, an isolation vial positioned in said carrier and having a lower end closed by a septum and filled with distilled water, a sample collec

Water sampling apparatus comprising a carrier adapted to be lowered into water to be sampled, said carrier being hollow and having an internal load carrying cavity, an isolation vial positioned in said carrier and having a lower end closed by a septum and filled with distilled water, a sample collection vial in said isolation vial having a septum aligned with said septum on said isolation vial, and hollow needle means piercing said septum on said isolation vial and operable to pierce said septum on said sample vial, said needle means being movable in response to a force generated by said carrier to pierce said septum on said sample vial, said needle means communicating said sample vial with said water to be sampled.