Static molds – In situ construction engineering type or building type-mold... – Forming building structure
Patent
1990-04-11
1992-03-24
Housel, James C.
Static molds
In situ construction engineering type or building type-mold...
Forming building structure
523097, 523099, 249112, 2491141, 249134, 249177, 249189, 4283171, 4283199, E04G 905
Patent
active
050980599
ABSTRACT:
An assembly comprising a foam piece adapted for use in concrete casting, the foam piece having a front surface, a back surface, and edges, the assembly further comprising a flexible, non-permeable plastic film surrounding the foam piece. In one aspect of the invention, the plastic film surrounding the foam piece is heat shrunk. In another aspect of the invention, the foam piece defines a block out for use in concrete casting. The assembly may include a wood beam in a groove in the foam piece, which beam can receive nails so that the assembly can be secured to a concrete casting form. The plastic film allows the foam piece to be easily removed from hardened concrete and reused.
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