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US 5,399,050 AGranted
Plastic concrete form for footers
OwnerJames L. Jacobusinventor
Life of this patent
Estimating the term…
Abstract
A thermoplastic sidewall forms one surface of a concrete form. The sidewall incorporates a drainage tile as an integral unit. Two of the sidewalls combined can provide a form for a concrete footer to be poured and remain as a permanent part of the structure.
Claims10
The combination of a concrete floor, a concrete support wall mounted on the upper surface of a concrete footer, a pair of sidewalls to define the shape of said footer and a hollow drainage tile, comprising,
- said floor having an upper surface and a lower surface,
- said concrete footer having side surfaces, upper and lower surfaces, a length, a width and a depth,
- said lower footer surface being supported on a substrate,
- said pair of sidewalls each having a planer surface in contact with a footer side surface, said sidewalls being located below the lower surface of said floor,
- said hollow drainage tile being formed by extrusion as a single unit with at least one of said sidewalls, said drainage tile extending parallel with and at the same elevation as said footer side surfaces, apertures extending through the surface of said drainage tile to allow water to enter said tile and be drained from the environment adjacent said footer.
2 more elements
Dependencies are inferred from the claim text.