PERFECCIONAMIENTOS EN LOS FILTROS PARA LIQUIDOS DE TRANSMISION Y METODO DE FABRICACION CORRESPONDIENTE.

摘要

An improved transmission fluid filter and a method of assembly wherein the filter comprises a plastic first member having a planar peripheral lip, and a sheet metal second member with a planar ledge and a continuous peripheral flange crimped over the cover lip and capturing the lip against the ledge. In accordance with the invention, a bead having an arcuate surface extends around the outside edge of the cover lip, and the flange is preformed in a continuous progressive bending or curling operation prior to engagement with the bead.