Sample system

Abstract

Improvements are set forth in the present disclosure for the sample taking system. It normally uses a valve which can be switched between two operative positions one delivering a sample. The valve lock mechanism is incorporated. Additional safety is provided by means of a blocking valve added to the circuit. These control the delivery of sample through a twin needle system which is inserted through the septum of a sample receiving container. That container is formed of a non-round shape supported in a mounting fixture which assures that it does not rotate to thereby avoid tearing the septum with the needles. In addition, a purge gas flow route is defined through the system and is discharged to atmosphere. This discharge is through a cartridge filter having duplicate ends. The ends are closed by membranes to permit inert gas to flow there through. The bottom membrane is pervious while the top membrane is impervious, but it is punctured by a needle to introduce the sample. The membranes, housing and particulate filter material are all combustible in a furnace for destruction of the equipment.

Dependencies are inferred from the claim text.