Abstract: A compact and lightweight filter assembly for mounting on electronic equipment enclosures which provides EMI shielding and passage of air to the enclosure.

Abstract: A compound construction matrix harvests energy incident on all peripheries of a building by providing compound components having anterior and posterior portions with respect to radiation, the anterior portions being generally transparent and the posterior portions being selectively translucent, transparent or opaque, the compound components being arranged in communicating relation to form walls and roofs having multiple internal cavities and passages between cavities which permit light and air to flow freely within the matrix, allowing light incident form any angle to be reflected from cavity sidewalls toward posterior portions to form overlapping incidence on translucent conversion surfaces and to pass through tinted conversion means for direct gain, and allowing air in each cavity to expand freely in any direction from sunlit to shaded portions and through apertures toward shaded portions of adjacent cavities, to thereby form a dynamic airstream passing over translucent conversion surfaces and non-transpare

Abstract: A compound convective construction matrix having an anterior half-matrix disposed to form the first radiation receiving surfaces of the compound matrix and a posterior half-matrix disposed to form the last radiation receiving surfaces of the compound matrix, each of the said half-matrices consisting of two identical frame members arranged in a stacked relation and each frame member having inclined frame elements disposed in intersecting relation to form a grid having grid intersections forming a plurality of compartments, each compartment housing a transparent component cushioned securely therein. The two identical half-matrices are arranged in paired and opposed mirror-image relation and having opposed half-compartments cooperate to form a plurality of internal hollow chambers. The two opposed half-matrices are joined by compressive devices at grid intersections.