초록 ▼

To sample liquids containing volatile materials, the liquid is pumped through a syringe needle into a container until the container overflows. The needle is removed slowly and the container is automatically closed as the needle is withdrawn, wherein liquid flows upwardly continuously as the needle i

To sample liquids containing volatile materials, the liquid is pumped through a syringe needle into a container until the container overflows. The needle is removed slowly and the container is automatically closed as the needle is withdrawn, wherein liquid flows upwardly continuously as the needle is withdrawn through an opening. The cap for the container includes a closure having a valve opening extending upwardly and sized to narrowly receive a syringe in a perpendicular valve member opening. The valve member includes a flat member on one end adapted to be gripped by a cam follower for opening and closing of the valve opening in coordination with the movement of the syringe.

대표청구항 ▼

[ What is claimed is:] [1.] A method of sampling liquid comprising the steps of:drawing a sample of liquid from a source to be tested causing at least a portion of the sample of liquid to flow through a needle into a container having an interior portion and a passageway until the interior portion of

[ What is claimed is:] [1.] A method of sampling liquid comprising the steps of:drawing a sample of liquid from a source to be tested causing at least a portion of the sample of liquid to flow through a needle into a container having an interior portion and a passageway until the interior portion of the container overflows into the passageway;removing the needle;closing the container by rotating a valve at a closing location within the passageway automatically as the needle is withdrawn and while liquid of said sample is above the closing location; andtesting said sample.