Patent ID: 8043862

Claim:
A sample cup, comprising: a substantially cylindrical cell body comprising an open top end including an outer wall with an outer top edge and an inner wall with an inner top edge, said outer wall and said inner wall extending axially and positioned in a concentric relationship, said outer wall and said inner wall forming an internal reservoir space therebetween for receiving overflow of an expanded sample material; an open bottom end; and a hollow defined between said, open top end and said open bottom end for receiving a sample material capable of expansion during analysis, said top edge of said inner wall being positioned a selected distance below said outer top edge of said outer wall to allow said expanded sample material to flow downwardly over said inner top edge and said outer top edge prevents overflow of said expanded sample material out of said cell body; and a cap, comprising a top surface, a bottom surface, and a peripherally disposed sidewall extending downwardly from said bottom surface of said cap, said sidewall frictionally and continuously engaging said outer wall, wherein, upon assembly, said cap is coupled to said cell body and maintains a space between said bottom surface of said cap and said inner top edge of said inner wall.