Patent ID: 6045758
Filing Date: 2000-04-04
Classification: B01L,B29C,G01N,Y10T

Abstract:
A test sample card having a body made from a molded material, said body comprising a fluid entrance port and first and second end regions and first and second side regions, said body defining a plurality of wells placed between said first and second end regions and said first and second side regions, said body further comprising a fluid passage network connecting said fluid entrance port to said wells,the improvement comprising:said body having cored regions comprising depressions in said body formed by positive elements in a mold forming said body, said cored regions disposed in at least one of said first and second end regions and said first and second side regions in a predetermined relationship to said wells so as to control the formation and direction of knit lines in the surface of said card relative to said wells,said cored regions improving the flow of said molded material during molding of said card in said mold to thereby control the formation of said knit lines in said material.