Formwork panel for concrete walls

Details Formwork panel for concrete walls Formwork panel for concrete walls

1980-02-27

1982-02-23

Czaja, Donald E.

Static molds

In situ construction engineering type or building type-mold...

Forming building structure

249 38, 249 43, 249 45, 249192, E04G 1100

Patent

active

043165940

ABSTRACT:
A formwork panel for constructing concrete walls having a forming skin supported by a steel frame in which a plurality of holes are provided for receiving a tie rod. The holes are provided with a plastic bushing which extends through and is fastened in the frame. The bushing has a conically tapered bore, the surface of which is continuous and smooth. This makes the removal of concrete from the bore extremely easy (FIG. 3).

REFERENCES:
patent: 1467903 (1923-09-01), McCallum
patent: 1907618 (1933-05-01), Umbach et al.
patent: 2305252 (1942-12-01), Hayden
patent: 3465999 (1969-09-01), Gates
patent: 3648961 (1972-03-01), Farrow
patent: 3918673 (1975-11-01), Abbott
patent: 3941346 (1976-03-01), Franc
patent: 4027847 (1977-06-01), Johnson

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