Patent ID: 7981380

Claim:
A cup assembly for holding a sample to be analyzed spectrochemically, comprising: a sample cell body having a generally cylindrical wall longitudinally extending between a first end and a second end thereof and an outwardly extending annular flange unitarily formed with said second end of said sample cell body; an annular sleeve having a generally cylindrical wall longitudinally extending between a first end and a second end thereof, and a plurality of projections longitudinally extending from the first end of the sleeve; and a substantially planar film interposed between the sample cell body and the annular sleeve, wherein, upon assembly, the first end of the sample cell body is inserted into the first end of the annular sleeve to retain a portion of the film between the sample cell body and the annular sleeve and said plurality of projections engage said annular flange to create one or more perforations in the film, wherein the portion of the film extending beyond the first end of the sleeve is removed by pulling the film against the plurality of projections.