Patent ID: 9709542
Date: 2017-07-18
CPC Classifications: G01N

Claim:
1. A bell cap inlet adaptor comprising: a sample inlet in fluid communication with a containment cavity; wherein the containment cavity is in fluid communication with an inlet to a sample tube, the sample inlet comprises a width being substantially equal to a shortest distance from an outer surface of the sample tube to an internal surface of the containment cavity, wherein air drawn through the sample tube imparts an axial cyclonic flow of air within the containment cavity, the sample tube is offset so as to not be concentric with the containment cavity, and a distance from the outer surface of the sample tube to an internal surface of the containment cavity at a location opposite the sample tube from a location of the shortest distance from the outer surface of the sample tube to the internal surface of the containment cavity, within a same horizontal plane, is no larger than twice the width of the sample inlet.