Patent US3590585A successfully refreshed from Google Patents.
US3590585A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite structure
Assignee: Shell USA Inc
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Filing: 1969-04-22
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Granted: 1971-07-06
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Expires: 1989-04-22
Abstract
Abstract An improved form of ''''artificial seaweed'''' for combating coastal erosion and the like comprises an anchored array of seaweed elements which are buoyant, water-resistant filamentary strands, preferably of foamed, stretched polyolefin having an internal plexiform structure surrounded by a substantially closed, thin skin. The structure as manufactured has water-decomposable filaments, such as of polyvinyl alcohol, interwoven at spaced intervals with the water-resistant seaweed elements to provide a more easily handled and transportable composite article. In a preferred mode, the lower ends of the seaweed elements are interwoven with transverse, water-resistant filaments to provide a fabric, preferably in tubular form, which is readily attached to an anchoring element or converted into an anchoring element by being filled with cement or sand.
Inventors
- 👤 Jan G De Winter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:59
CPC Classifications
E; E02; E02B; E02B3/00; E02B3/04; E02B3/043; D; D03; D03D; D03D25/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
73 words
An article adapted to be anchored as a means for influencing the migration of material at the bottom of bodies of water, comprising a coherent structure of elongated, flexible, buoyant strands of synthetic water-resistant material interconnected at spaced intervals along their length by filaments of waterdecomposable material, said water-resistant strands being, at one of their ends, interwoven with other water-resistant strands to form a fabric strip adapted to be secured to anchoring means.
Claim 2
Dependent Claim
73 words
An article adapted to be anchored as a means for influencing the migration of material at the bottom of bodies of water, comprising a coherent structure of elongated, flexible, buoyant strands of synthetic water-resistant material interconnected at spaced intervals along their length by filaments of waterdecomposable material, said water-resistant strands being, at one of their ends, interwoven with other water-resistant strands to form a fabric strip adapted to be secured to anchoring means.
Claim 3
Dependent Claim
48 words
An article according to claim 1 wherein said buoyant strands are polyolefin strands having a tensile strength of at least 1 g./denier and an internal plexiform structure surrounded by a substantially closed, thin skin, and said filaments of water-decomposable material are composed of polyvinyl alchohol or cellulose fibers.
Claim 4
Dependent Claim
24 words
An article according to claim 1 in which said buoyant strands are interconnected by said filaments in parallel arrangement to form a matlike structure.
Claim 5
Dependent Claim
35 words
An article according to claim 2, in which said strands and filaments form a woven structure which has been formed on a loom with the filaments being the warp and the strands being the weft.
Claim 6
Dependent Claim
50 words
An article adapted to be anchored as a means for influencing the migration of material at the bottom of bodies of water, comprising a coherent structure of elongated, flexible, buoyant strands of synthetic water-resistant material which strands, at one of their ends, form a fabric strip in a tubular form.
Claim 7
Dependent Claim
50 words
An article adapted to be anchored as a means for influencing the migration of material at the bottom of bodies of water, comprising a coherent structure of elongated, flexible, buoyant strands of synthetic water-resistant material which strands, at one of their ends, form a fabric strip in a tubular form.
Claim 8
Dependent Claim
23 words
An article according to claim 5 wherein said water-resistant strands are interconnected at spaced intervals along their lengths by filaments of water-decomposable material.
Claim 9
Dependent Claim
11 words
An article according to claim 2 wherein said polyolefin is polypropylene.
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) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |