Static structures (e.g. – buildings) – Window or window sash – sill – mullion – or glazing – Decorative grill attached to sash
Patent
1982-06-08
1985-01-29
Perham, Alfred C.
Static structures (e.g., buildings)
Window or window sash, sill, mullion, or glazing
Decorative grill attached to sash
52314, 52367, 52375, 52602, E06B 124, B44F 700, E04B 264
Patent
active
044957386
ABSTRACT:
Concrete building panels include a decorative embossed pattern on an outer surface. A plurality of concrete reinforcing ribs are disposed along an inner surface of the concrete building panels. Nailing strips are anchored into tips of the respective concrete reinforcing ribs. A method for making the building panels include a step of placing anchored nailing strips into tapered rib sections of a horizontal fiberglass mold is disclosed wherein reinforcing bars and mesh and moist concrete are placed into the mold and allowed to cure until the exposed upper surface of the moist concrete is plastically deformable. The horizontal mold is passed beneath a rotating embossing roller having a cylindrical embossing pattern thereon. The plastically deformable concrete contacts the embossing pattern, producing a complementary pattern on the concrete surface. The embossed concrete is cured in the mold to produce the building panel. The concrete building panel is then separated from the mold.
REFERENCES:
patent: 1525797 (1925-02-01), Blum
patent: 1641623 (1927-09-01), Carter
patent: 1745880 (1930-02-01), Winston
patent: 2156027 (1939-04-01), Preble
patent: 2592634 (1952-04-01), Wilson
patent: 4271111 (1981-06-01), Sheber
Engineering News-Record, May 16, 1918, pp. 947, 948.
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