US3724768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making wrapped tubular concrete
Assignee: Hydro Conduit Corp
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Filing: 1970-06-16
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Granted: 1973-04-03
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Expires: 1990-06-16
Abstract
Abstract Method of making reinforced concrete inclusive of hollow concrete body of tubular shape having beveled end and reinforcing member wrapped on exterior surface of length of concrete body at beveled end in progression of wraps to form continuous helical assembly. Reinforcing assembly under lesser tension extends along shorter side portion than longer side portion to provide more nearly equal stress in concrete body. Means associated with concrete body onto which reinforcing member is wrapped is utilized for holding reinforcing member against circumferential movement to maintain said preselected tension in reinforcing member.
Inventors
- 👤 J Zicaro
- 👤 T Breitfuss
- 👤 F Wallace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:33
CPC Classifications
B; B28; B28B; B28B21/00; B28B21/56; B28B21/60; B28B21/62; B28B21/64; F; F16; F16L; F16L9/00; F16L9/08
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
118 words
A method of producing a reinforced concrete structure having at least one beveled end comprising the steps of wrapping an elongated reinforcing member around a hollow concrete body at the beveled end in a continuous helical pattern of multiple wraps throughout the lengthwise extent of the reinforcing member, alternately applying a lesser degree of tension to the reinforcing member during said wrapping along the short side portion of the concrete body and a greater degree of tension to the reinforcing body during said wrapping along the long side portion of the concrete body and holding said helical assembly against circumferential movement on said body to provide a balanced stress in the reinforced portion of said beveled concrete body.
Claim 2
Independent Claim
118 words
A method of producing a reinforced concrete structure having at least one beveled end comprising the steps of wrapping an elongated reinforcing member around a hollow concrete body at the beveled end in a continuous helical pattern of multiple wraps throughout the lengthwise extent of the reinforcing member, alternately applying a lesser degree of tension to the reinforcing member during said wrapping along the short side portion of the concrete body and a greater degree of tension to the reinforcing body during said wrapping along the long side portion of the concrete body and holding said helical assembly against circumferential movement on said body to provide a balanced stress in the reinforced portion of said beveled concrete body.
Claim 3
Independent Claim
179 words
The method of making a reinforced concrete structure which comprises the steps of: securing one end of a reinforcing member at a selected point on a hollow concrete body; wrapping said reinforcing member from the point at which it is attached around a selected outer portion of said concrete body in a helical pattern whereby to form a plurality of helical wraps of said reinforcing member around the selected portion of said concrete body; varying the tension at which said reinforcing member is wrapped in a predetermined manner so as to provide a substantially balanced stress in the selected portion of said concrete body; and securing the second end of said reinforcing member to said concrete body whereby to hold the reinforcing member against circumferential movement on said concrete body; said method further including the step of mounting a plurality of holding means at selected points on the selected outer portion of said concrete body, said reinforcing member being wrapped over and anchored at said selected points on said concrete structure to maintain differential tension on said reinforcing member.
Claim 4
Independent Claim
179 words
The method of making a reinforced concrete structure which comprises the steps of: securing one end of a reinforcing member at a selected point on a hollow concrete body; wrapping said reinforcing member from the point at which it is attached around a selected outer portion of said concrete body in a helical pattern whereby to form a plurality of helical wraps of said reinforcing member around the selected portion of said concrete body; varying the tension at which said reinforcing member is wrapped in a predetermined manner so as to provide a substantially balanced stress in the selected portion of said concrete body; and securing the second end of said reinforcing member to said concrete body whereby to hold the reinforcing member against circumferential movement on said concrete body; said method further including the step of mounting a plurality of holding means at selected points on the selected outer portion of said concrete body, said reinforcing member being wrapped over and anchored at said selected points on said concrete structure to maintain differential tension on said reinforcing member.
Claim 5
Independent Claim
274 words
The method of making a reinforced concrete structure which comprises the steps of: securing one end of a reinforcing member at a selected point on a hollow concrete body; wrapping said reinforcing member from the point at which it is attached around a selected outer portion of said concrete body in a helical pattern whereby to form a plurality of helical wraps of said reinforcing member around the selected portion of said concrete body; varying the tension at which said reinforcing member is wrapped in a predetermined manner so as to provide a substantially balanced stress in the selected portion of said concrete body; and securing the second end of said reinforcing member to said concrete body whereby to hold the reinforcing member against circumferential movement of said concrete body, the selected outer portion of said concrete body around which said reinforcing member is wrapped being a beveled tubular end portion, said method further including the step of mounting a plurality of longitudinal extending holding means on the outer periphery of said beveled end portion prior to wrapping said reinforcing member on said concrete body, said holding members being each mounted on opposite sides of said beveled end portion midway between the long and short length of said beveled end portion whereby to divide said beveled end portion into long and short side portions, said reinforcing member being wrapped at a first tension along said long side portion and at a second tension lesser than said first tension along said short side portion, said reinforcing member being wrapped over and anchored in said holding means whereby differential tension is maintained on said reinforcing member.
Claim 6
Independent Claim
274 words
The method of making a reinforced concrete structure which comprises the steps of: securing one end of a reinforcing member at a selected point on a hollow concrete body; wrapping said reinforcing member from the point at which it is attached around a selected outer portion of said concrete body in a helical pattern whereby to form a plurality of helical wraps of said reinforcing member around the selected portion of said concrete body; varying the tension at which said reinforcing member is wrapped in a predetermined manner so as to provide a substantially balanced stress in the selected portion of said concrete body; and securing the second end of said reinforcing member to said concrete body whereby to hold the reinforcing member against circumferential movement of said concrete body, the selected outer portion of said concrete body around which said reinforcing member is wrapped being a beveled tubular end portion, said method further including the step of mounting a plurality of longitudinal extending holding means on the outer periphery of said beveled end portion prior to wrapping said reinforcing member on said concrete body, said holding members being each mounted on opposite sides of said beveled end portion midway between the long and short length of said beveled end portion whereby to divide said beveled end portion into long and short side portions, said reinforcing member being wrapped at a first tension along said long side portion and at a second tension lesser than said first tension along said short side portion, said reinforcing member being wrapped over and anchored in said holding means whereby differential tension is maintained on said reinforcing member.
Claim 7
Dependent Claim
12 words
The method recited in claim 3 wherein said reinforcing member is wire.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |