US4718965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making a structural cable
Assignee: Individual
•
Filing: 1985-08-28
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Granted: 1988-01-12
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Expires: 2005-08-28
Abstract
Abstract A cable for structures, especially suspension bridges, has a plurality of bundled tension elements spacedly surrounded by a tubular sheath, the space between tension elements and sheath being filled with a material, preferably injected mortar. To reduce the cost of producing, transporting and assembling such a cable, the tubular sheath is formed at the worksite from at least one sheet-steel strip in a shaping and seaming station and progressed along already tensioned tension elements, then sealed against anchorings for the cable, and filled with the mortar under pressure.
Inventors
- 👤 Ulrich Finsterwalder
- 👤 Xaver Lipp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:58
CPC Classifications
E; E01; E01D; E01D19/00; E01D19/16
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
122 words
A process for making a cable for a suspension structure comprising: providing at least one tension element, anchoring the ends of the same to the suspension structure, and tensioning the tension element; providing at least one continuous strip with a longitudinal axis and a curved shape along said longitudinal axis of said continuous strip, said continuous strip positioned in an arcuate position about the tension element; and progressively forming said at least one continuous strip into a sheath about the tension element with a space therebetween, confronting longitudinal edges along the continuous strip being bonded together; advancing the sheath along the tension element as so progressively formed; and filling the space between the tension element and the sheath with a filling material.
Claim 2
Dependent Claim
122 words
A process for making a cable for a suspension structure comprising: providing at least one tension element, anchoring the ends of the same to the suspension structure, and tensioning the tension element; providing at least one continuous strip with a longitudinal axis and a curved shape along said longitudinal axis of said continuous strip, said continuous strip positioned in an arcuate position about the tension element; and progressively forming said at least one continuous strip into a sheath about the tension element with a space therebetween, confronting longitudinal edges along the continuous strip being bonded together; advancing the sheath along the tension element as so progressively formed; and filling the space between the tension element and the sheath with a filling material.
Claim 3
Dependent Claim
21 words
The process of claim 1, wherein tensioning the tension element further comprises anchoring ends of the same to the suspension structure.
Claim 4
Dependent Claim
27 words
The process of claim 1, wherein forming the continuous strip into the sheath further comprises folding the fold along each confronting longitudinal edge of the sheath together.
Claim 5
Dependent Claim
30 words
The process of claim 1, wherein forming the continuous strip into the sheath further comprises folding the fold along each confronting longitudinal edge of the sheath into an oppositely-opening hook.
Claim 6
Dependent Claim
22 words
The process of claim 4, and further comprising engaging a C-shaped strip across the oppositely-opening hooks along each of the confronting edges.
Claim 7
Dependent Claim
37 words
The process of claim 1, wherein forming the continuous strip into a sheath comprises progressively forming the same in a stationary shaping and folding station and advancing the sheath along the tension element as so progressively formed.
Claim 8
Dependent Claim
37 words
The process of claim 2, wherein forming the continuous strip into a sheath comprises progressively forming the same in a stationary shaping and folding station and advancing the sheath along the tension element as so progressively formed.
Claim 9
Dependent Claim
37 words
The process of claim 3, wherein forming the continuous strip into a sheath comprises progressively forming the same in a stationary shaping and folding station and advancing the sheath along the tension element as so progressively formed.
Claim 10
Dependent Claim
37 words
The process of claim 4, wherein forming the continuous strip into a sheath comprises progressively forming the same in a stationary shaping and folding station and advancing the sheath along the tension element as so progressively formed.
Claim 11
Dependent Claim
37 words
The process of claim 5, wherein forming the continuous strip into a sheath comprises progressively forming the same in a stationary shaping and folding station and advancing the sheath along the tension element as so progressively formed.
Claim 12
Dependent Claim
32 words
The process of claim 6, wherein advancing the sheath along the tension element comprises pulling the same therealong with a hoist at least sufficiently to compensate for the weight of the sheath.
Claim 13
Dependent Claim
32 words
The process of claim 7, wherein advancing the sheath along the tension element comprises pulling the same therealong with a hoist at least sufficiently to compensate for the weight of the sheath.
Claim 14
Dependent Claim
22 words
The process of claim 1, wherein providing and tensioning the at least one tension element comprises providing and tensioning plural tension elements.
Claim 15
Dependent Claim
20 words
The process of claim 13, wherein tensioning the plural tension elements comprises hoisting the same into the suspension structure individually.
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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) | 1991-01-11 | 1991-07-13 | 1992-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-11 | 1995-07-13 | 1996-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-11 | 1999-07-13 | 2000-01-12 | $7700.00 | Window Closed / Lapsed |