Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Fabric or lattice; e.g. – indeterminate grating
Patent
1979-07-18
1981-08-11
Leppink, James A.
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Fabric or lattice; e.g., indeterminate grating
52667, 52664, E04C 242
Patent
active
042826950
ABSTRACT:
A grille comprised of a plurality of the thin strips and bars made of the steel or plastics is disclosed, which grille is assembled without using any welding or bonding. The thin strips have a series of equally spaced notches cut out along the edge of said strips, which notches are of a rectangular shape of width slightly greater than the thickness of said strip and of depth approximately equal to the one half of the width of said strip. Said strips further include a series of holes disposed intermediate each pair of adjacent notches. First half of the grille assembly is formed by the plurality of said strips forming a network wherein the notches on the strips crossing each other engage one another at each crossing point. The last half of the grille assembly is composed of bars threaded through said holes on the strips which bars forms another network wherein bars crossing each other are interlaced to one another.
REFERENCES:
patent: 826989 (1906-07-01), Von Busse
patent: 928196 (1909-07-01), Herald
patent: 950236 (1910-02-01), Melish
patent: 1336547 (1920-04-01), Wright
patent: 2069391 (1937-02-01), Sample
Leppink James A.
Raduazo Henry E.
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