Patent ID: 7051605

Claim:
An airborne particle impaction sampler, comprising: a base; a microscope slide disposed on said base; an adhesive media located on said microscope slide to assist in adhering airborne particles on said microscope slide; a top cap secured to said base, said top cap having an inlet opening formed therethrough, said inlet opening being configured as a slit, the upper surface of the top cap defining the inlet opening including opposed substantially parallel side portions and opposed outwardly radiused arcuate end portions extending between and interconnecting the ends of the side portions; and an inlet passageway extending from the inlet opening, the top cap defining a first portion and a second portion of the inlet passageway, the first portion of the inlet passageway including opposed planar side walls converging inwardly from a top edge integral with the side portions of the inlet opening to coplanar bottom edges, and outwardly radiused arcuate end walls converging inwardly from a top edge integral with the end portions of the inlet opening to bottom edges coplanar with the bottom edges of the side walls, the end walls extending between and interconnecting the side walls, and the second portion of the inlet passageway including substantially parallel side walls extending from a top edge integral with the bottom edges of the side walls of the first portion of the inlet passageway to coplanar bottom edges, and opposed outwardly radiused arcuate end walls extending from a top edge integral with the bottom edges of the end walls of the first portion of the inlet passageway to bottom edges coplanar with the bottom edges of the parallel side walls, the opposed end walls of the second portion of the inlet passageway extending between and interconnecting the parallel side walls, and the bottom edges of the side walls and the end walls of the second portion of the inlet passageway defining an outlet opening adjacent the microscope slide such that air entering the sampler impacts said adhesive media.