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US 10,066,404 B2Granted
Method and apparatus for forming a formwork for a concrete slab
OwnerFabio Parodiinventor
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OwnerFabio Parodiinventor
Estimating the term…
A method and apparatus for forming a formwork for a ribbed or waffle concrete slab is provided. The apparatus includes a rectangular block having a ledge around the base, the ledge having a dimension of half the desired width of the base ribs of the concrete slab, and a keystone connector. The keystone connector has an engagement portion configured to attach to an engagement portion on each block. In a method, the blocks are laid out so that the ledges of adjacent blocks are in contact. A keystone connector is then placed at each intersection of four blocks by attaching the respective engagement portions of the keystone connector and each block so that the keystone connector holds each of the four blocks in place relative to one another. The keystone connector is also configured to retain a reinforcing rod laid in the channel between adjacent blocks.
A method of forming a formwork configured to form a ribbed or waffle concrete slab, the method using hollow blocks having a top, four sides, and a ledge extending from each side of the hollow block along an edge of the hollow block distal to the top of the hollow block, the ledge forming a base for the hollow block, the method comprising:
A hollow block configured to engage with a keystone connector to form a formwork for a ribbed or waffle concrete slab, wherein
Dependencies are inferred from the claim text.