Patent ID: 6391241
Filing Date: 2002-05-21
Classification: B01L,Y10S

Abstract:
A method of making a filter plate comprising the steps of:a) molding an insert having a matrix of interconnected counterbores, each counterbore having a bottom wall, an outer rim of predetermined diameter extending upwardly from said bottom wall, and an opening therethrough; b) positioning a filter disc in each of said counterbores such that said filter disc rests upon the top surface of said bottom wall; c) molding a well plate against said insert, said well plate having a top and bottom wall having a matrix of wells of predetermined diameter extending through said plate, each said well having open ends at each of said top and bottom wall, each said well having lower a wall, and whereby said matrix of counterbores corresponds with said matrix of wells such that each said lower wall aligns with a corresponding counterbore, whereby an outer diameter of each said lower wall is less than an inner diameter of said outer rim of each said corresponding counterbore, whereby said lower wall fits inside the rim of said corresponding counterbore thereby forming a lap joint between each said counterbore and said lower wall, and whereby said lower wall compresses said filter disc against said bottom wall of said counterbore thereby securing said filter disc in place.