Expanded Metal LWO

Abstract

A filter assembly that has a filtering method overlying an expanded metal skeletal structure, said expanded metal employing sidewalls that are Long Way of the Diamond having their greatest length parallel to a roofs edge and whose sidewall members have a top edge facing oncoming water flow that is narrow than a corresponding bottom edge.

1 . A rain gutter filtering assembly comprising: a screen or mesh having a top surface and a bottom surface and first and second longitudinal edges extending between opposing ends overlying an expanded metal skeletal structure wherein the expanded metal is formed with openings perimetered by sidewall members angled toward oncoming water flow wherein at least one of the openings has a majority of its sidewall members angled toward oncoming water flow, said opening having at least one of the sidewall members angled toward water flow being perpendicular or almost perpendicular to oncoming water flow and of a greater length than the majority of remaining sidewall members that perimeter said opening. 
     
     
         2 . The gutter assembly according to claim one wherein the sidewall member relatively perpendicular or perpendicular to water flow and having a greater length than the majority of remaining sidewall members that define a perimetered opening has a top edge of narrower width than its corresponding bottom edge.