Patent US4504428A successfully refreshed from Google Patents.
US4504428A
Expired / Lapsed
US
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Method for making reinforced concrete products
Assignee: Individual
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Filing: 1983-04-04
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Granted: 1985-03-12
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Expires: 2003-04-04
Abstract
Abstract A method for making reinforced concrete including the steps of laying down layers of concrete and contemporaneously automatically cutting, and bodily ejecting into the contemporaneously layed down layers of concrete oriented wire lengths in any desired aligned patterns. In one embodiment the concrete layers are injected into a rotating cylindrical form and the oriented wires are cyclically bodily thrown off at selected angular intervals for embedment in axially aligned annular arrays in the concrete layers.
Inventors
- 👤 Philip L. Rotondo
- 👤 Thomas J. Rotondo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:10
CPC Classifications
B; B28; B28B; B28B21/00; B28B21/56; B28B21/68; B28B23/00; B28B23/02; B28B23/20; Y; Y10; Y10T; Y10T83/00; Y10T83/404; Y10T83/416; Y10T83/42; Y10T83/869; Y10T83/8772
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
61 words
A method of producing reinforced concrete structures comprising the steps of serially introducing layers of concrete in a form, cyclically feeding, cutting and forcibly bodily throwing off, at spaced intervals, straight axially oriented cut lengths of reinforcing wire at least 10 inches in length into each layer whereby said wires are imbedded in parallel ordered arrays, and curing said layered structure.
Claim 2
Independent Claim
61 words
A method of producing reinforced concrete structures comprising the steps of serially introducing layers of concrete in a form, cyclically feeding, cutting and forcibly bodily throwing off, at spaced intervals, straight axially oriented cut lengths of reinforcing wire at least 10 inches in length into each layer whereby said wires are imbedded in parallel ordered arrays, and curing said layered structure.
Claim 3
Independent Claim
91 words
A method of producing hollow reinforced concrete poles comprising the steps of rotating an elongated hollow cylindrical form of predetermined length, axially moving said form relative to means for introducing concrete into said form whereby centrifugal force holds said concrete in layers within said form, cyclically bodily throwing off at angularly spaced intervals axially oriented cut lengths of wire into the concrete layers, whereby said wires are axially embedded in axially aligned annular arrays along the length of said form, and curing said concrete and embedded wire to produce said poles.
Claim 4
Independent Claim
91 words
A method of producing hollow reinforced concrete poles comprising the steps of rotating an elongated hollow cylindrical form of predetermined length, axially moving said form relative to means for introducing concrete into said form whereby centrifugal force holds said concrete in layers within said form, cyclically bodily throwing off at angularly spaced intervals axially oriented cut lengths of wire into the concrete layers, whereby said wires are axially embedded in axially aligned annular arrays along the length of said form, and curing said concrete and embedded wire to produce said poles.
Claim 5
Dependent Claim
22 words
The method as recited in claim 2 including the step varying the rotational speed of said form to vary said wire pattern.
Claim 6
Dependent Claim
18 words
The method as recited in claim 2 including the step of varying the axial speed of said form.
Claim 7
Dependent Claim
19 words
The method as recited in claim 2 including the step of varying the cyclic speed of wire throw off.
Claim 8
Dependent Claim
121 words
A process for making a hollow reinforced concrete pole comprising the steps of rotating an elongated hollow tapered cylindrical form of predetermined length, axially cyclically moving said form to and fro, introducing concrete into the interior of said rotating form during axial movement thereof whereby layers of concrete are laid down along the length of said form and held against the interior of said form by centrifugal force, cyclically bodily throwing off at angularly spaced intervals axially oriented straight cut lengths of wire at least 10 inches in length into said spinning and axially moving form for axial embedment in said concrete layers in axially ordered annular arrays along the length of said form, and curing said concrete and embedded wire.
Claim 9
Dependent Claim
121 words
A process for making a hollow reinforced concrete pole comprising the steps of rotating an elongated hollow tapered cylindrical form of predetermined length, axially cyclically moving said form to and fro, introducing concrete into the interior of said rotating form during axial movement thereof whereby layers of concrete are laid down along the length of said form and held against the interior of said form by centrifugal force, cyclically bodily throwing off at angularly spaced intervals axially oriented straight cut lengths of wire at least 10 inches in length into said spinning and axially moving form for axial embedment in said concrete layers in axially ordered annular arrays along the length of said form, and curing said concrete and embedded wire.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-03-11 | 1988-09-10 | 1989-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-11 | 1992-09-10 | 1993-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-11 | 1996-09-10 | 1997-03-12 | $7700.00 | Window Closed / Lapsed |