Method and apparatus for making reinforced concrete products
OwnerPhilip L. Rotondo, Thomas J. Rotondoinventors
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Abstract
Methods and apparatus for making reinforced concrete products wherein arrays of reinforcing rods are distributed and imbedded automatically during the introduction of concrete into a form. A novel reinforcing wire cutting-ejection mechanism is provided to throw off cut wire into concrete deposited in the form at any spacing and pattern desired. Novel hollow reinforced concrete poles having high tensile strengths are produced automatically in one embodiment.
Claims12
A hollow structure having an annular wall comprised of concrete,
- a plurality of discrete cut lengths of straight reinforcing wires embedded within said annular wall along the length of and in alignment with the axis of said structure,
- said cut lengths of wire being at least ten inches in length,
- said embedded lengths of wire being ordered and arranged in a plurality of radially spaced annular arrays with wires in an annular array circumferentially and axially spaced from one another, and
- said annular arrays axially overlapping one another.
A hollow utility pole having an annular wall comprised of concrete,
- said concrete wall having axially embedded therein a plurality of ordered annular radially spaced arrays of straight wires,
- said wires having a length of at least 10 inches and a length to diameter ratio of at least 360, and
- said arrays axially overlapping one another with wires in each array circumferentially and axially spaced from one another.
A fiber reinforced concrete article of manufacture comprising,
- a plurality of bonded layers of concrete, and
- a plurality of ordered arrays of aligned cut lengths of wire embedded in each of said layers of concrete,
- said wires being at least 10 inches in length and having L/D ratios of at least 360,
- said arrays in each layer of concrete overlapping one another, and
- said arrays in adjacent layers of concrete overlapping one another.
Dependencies are inferred from the claim text.