Patent ID: 6827232
Filing Date: 2004-12-07
Classification: B29C,H05K

Abstract:
A sealed case for housing equipment, said case comprising an injection molded resin body having an interior and an exterior, and having a through hole leading from said interior to said exterior, wherein said through hole has a periphery, wherein the portion of the resin body surrounding said periphery of the through hole comprises a boss surrounded by an annular groove, wherein said boss has a radial tip surface, wherein said through hole is covered with a water-repellent, porous, film which is permeable to air, but impermeable to liquids, wherein said water-repellent film overlies and is bonded to said tip surface by entry of said molten resin into pores of said film due to pressure applied to the molten resin when said molten resin is injection-molded, and wherein only one side of said film is bonded to said boss.