Patent ID: 8621800

Claim:
A mortar and debris collection device for use in a masonry wall assembly having an inner wall and an outer wall, a masonry cavity defined between the walls, and weep vent passages formed through the outer wall, where the weep vent passages open into the cavity for discharge of moisture from the cavity, comprising: a water permeable body comprising a contoured hollow shell formed of an open space array of polymer filaments that twist and turn between filament intersections where adjacent ones of the filaments are bonded to each other, the contours of the shell defining an interior filament-free hollow having an open back face and a closed front face opposite the back face; the hollow shell having a base elongated along a linear axis and at least one extension upwardly projecting from the base along the linear axis in a vertical direction, the at least one extension comprising at least one shelf for collecting mortar and debris within the masonry cavity above the weep vent passages.