US4798499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retaining panel
Assignee: KENSETSUKISO ENGINEERING Co Ltd
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Filing: 1986-05-15
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Granted: 1989-01-17
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Expires: 2006-05-15
Abstract
Abstract A concrete revetment is provided which is arcuate in horizontal cross section, and has end portions which are interconnected by a cordal member. The cordal member is adapted to be prestressed by a tension rod to place the cordal member in compressive stress and the arcuate portion of the revetment in tensile stress. The revetment is held in place by anchor means embedded in back-fill on the convex side of the arcuate revetment. A plurality of revetments may be arranged and interlocked horizontally and vertically to form a revetment wall.
Inventors
- 👤 Kunimitsu Yamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:03
CPC Classifications
E; E02; E02D; E02D29/00; E02D29/02; E02D29/025; E02D17/00; E02D17/18
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
122 words
For use in stabilizing a steep earthen slope, a concrete revetment comprising a plurality of concrete sections, each of which includes an arcuate member having a convex back face, a concave front face and vertical extremities and a front cordal member interconnecting the vertical extremities of the arcuate member; said cordal member being adapted to encase a tension rod passing longitudinally therethrough; means to tension said tension rod to compress said cordal member to tension said arcuate member; means to stack said sections in vertical rows and to align said sections in horizontal rows, the convex sides of said arcuate members being positioned to face toward said steep earthen slope and means to anchor each said section to said steep earthen slope.
Claim 2
Dependent Claim
122 words
For use in stabilizing a steep earthen slope, a concrete revetment comprising a plurality of concrete sections, each of which includes an arcuate member having a convex back face, a concave front face and vertical extremities and a front cordal member interconnecting the vertical extremities of the arcuate member; said cordal member being adapted to encase a tension rod passing longitudinally therethrough; means to tension said tension rod to compress said cordal member to tension said arcuate member; means to stack said sections in vertical rows and to align said sections in horizontal rows, the convex sides of said arcuate members being positioned to face toward said steep earthen slope and means to anchor each said section to said steep earthen slope.
Claim 3
Dependent Claim
19 words
The concrete revetment of claim 1, including tension means adapted to prestress an entire horizontal row of cordal members.
Claim 4
Dependent Claim
34 words
The concrete revetment of claim 1, wherein each concrete section includes an arcuate member and a plurality of vertically spaced apart cordal members integrally secured to the concave front face of said arcuate member.
Claim 5
Dependent Claim
39 words
The concrete section of claim 1, wherein said cordal member comprises a horizontal base having a straight front face and an arcuate convex back face, said back face being integrally secured to the concave face of said arcuate member.
Claim 6
Dependent Claim
25 words
The concrete section of claim 4, wherein a potting soil retaining upstanding apron is integrally secured to the said front face of said horizontal base.
References Cited (Backward Citations)
US936843A
Cited
US1294556A
Cited
CH72920A
Cited
US1278364A
Cited
US2413867A
Cited
US3270471A
Cited
FR1239424A
Cited
US3073061A
Cited
US3316721A
Cited
US3399437A
Cited
US3820343A
Cited
US4050254A
Cited
FR2419362A1
Cited
US4521138A
Cited
US4658541A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-01-17 | 1992-07-18 | 1993-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-17 | 1996-07-18 | 1997-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-17 | 2000-07-18 | 2001-01-17 | $7700.00 | Window Closed / Lapsed |