Plastic forms for poured concrete

Details Plastic forms for poured concrete Plastic forms for poured concrete

1990-06-21

1991-05-14

Raduazo, Henry E.

Static structures (e.g., buildings)

With synthetic resinous component

Foam

52439, 52594, E04C 100

Patent

active

050144804

ABSTRACT:
A hollow foamed plastic form for concrete has a pair of opposed parallel side walls with planar upper and lower faces, and a pair of opposed end members. Disposed on the upper and lower faces of the side walls are a series of elongated locking members, each composed of a pair of offset ribs having a trapezoidal shape.

REFERENCES:
patent: 3141392 (1964-07-01), Schneider et al.
patent: 3148477 (1964-09-01), Bjorn et al.
patent: 3668832 (1972-06-01), Harman
patent: 3788020 (1974-01-01), Gregori
patent: 4655014 (1987-04-01), Krecke
patent: 4730422 (1988-03-01), Young
patent: 4894969 (1990-01-01), Horobin

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