Concrete floor system

Details Concrete floor system Concrete floor system

1993-08-30

1994-08-16

Friedman, Carl D.

Static structures (e.g., buildings)

Openwork; e.g., truss, trellis, grille, screen, frame, or...

Spacer-positioner; e.g., rebar chair

52688, 52340, 52689, 248 83, 2481631, E04C 516

Patent

active

053375327

ABSTRACT:
A concrete floor system includes undulating sheet metal formwork for forming concrete slabs with one or more concrete ribs. The system also provides a unique type of bar chair which allows reinforcement in the form of steel rods, for example, to be dropped in place, thereby minimizing the labor required in installing the formwork.

REFERENCES:
patent: 1406379 (1922-02-01), Hatch
patent: 1880707 (1932-10-01), Bitney
patent: 1903356 (1933-04-01), Bitney
patent: 1907477 (1933-05-01), Bauman
patent: 2131652 (1936-02-01), Young
patent: 3132448 (1964-05-01), Phillips et al.
patent: 4080770 (1978-03-01), Vigh
patent: 4085559 (1978-04-01), Ilukowicz

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