| 摘要 |
The present invention may be used for framing a fluid flow filter pack. A first frame member may have a first border element with an open portion. The first border element may have four first side walls bendable along a line parallel to a peripheral edge of each of the first side walls. A second frame member may have a second border element with an open portion. The second border element may have four side walls bendable along a bend line parallel to an outer edge of each side wall. Each side wall of the second frame member may have a sealing flap bendable along the outer edge. The second frame member may be positioned on the first frame member with each side wall overlapping and attached to one of the first frame member side walls. The sealing flap may be bent to be adjacent to the second frame member side walls.
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