Concrete wall forming panel with inflatable liner means

Details Concrete wall forming panel with inflatable liner means Concrete wall forming panel with inflatable liner means

1974-05-06

1976-05-25

Husar, Francis S.

Static molds

Having inflatable element

249 66A, 249189, E04G 905

Patent

active

039587908

ABSTRACT:
A form assembly for wall-like, large area concrete structures includes a generally planar, rigid panel arranged to abut similar adjacent panels providing a form for the wall-like sructure: a soft, resilient, stretchable plastic liner, mounted on and coextensive with the panel, with at least a complete peripheral seal between edge portions of the panel and the liner, with the liner being secured to the panel in the sealing areas so as to provide a generally airtight, inflatable pouch center-wise of the panel, and gas insertion means for inserting low pressure gas into the inflatable pouch portions for breaking the combined panel and liner from a set concrete structure.

REFERENCES:
patent: 1146413 (1915-07-01), Edison
patent: 1664667 (1928-04-01), Davis
patent: 1983757 (1934-12-01), Hick
patent: 2047624 (1936-07-01), Freedlander
patent: 2213902 (1940-09-01), Daniels
patent: 2271125 (1942-01-01), Juve
patent: 2480477 (1949-08-01), Jones
patent: 2575734 (1951-11-01), Schulman
patent: 2964800 (1960-12-01), Dorsett
patent: 3317178 (1967-05-01), Kreier, Jr.
patent: 3347966 (1967-10-01), Seefluth
patent: 3843089 (1974-10-01), Scholz et al.

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