US3928978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing and protecting deposits of sedimentary material on floors of bodies of water
Assignee: Individual
•
Filing: 1974-10-25
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Granted: 1975-12-30
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Expires: 1994-10-25
Abstract
Abstract This disclosure relates to apparatus for producing and protecting deposits of sedimentary material on a floor of a body of water, the apparatus including a flexible sheet located beneath the surface of the water in at least partially upwardly spaced relationship, close to, but above the floor, and means for maintaining the flexible sheet so positioned.
Inventors
- 👤 Ole Jeppe Fjord Larsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:43
CPC Classifications
E; E02; E02B; E02B3/00; E02B3/04; F; F16; F16L; F16L1/00; F16L1/12; F16L1/123
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
86 words
Apparatus for producing and protecting deposits of sedimentary material on a floor of a body of water, said apparatus comprising an elongated sheet located beneath the surface of the water in at least partially upwardly spaced relationship close to but above said floor, means for maintaining said elongated sheet so positioned, said maintaining means are a plurality of elements supporting said sheet along spaced points of the length thereof, and said sheet is of undulating configuration as viewed in transverse cross section along the length thereof.
Claim 2
Dependent Claim
86 words
Apparatus for producing and protecting deposits of sedimentary material on a floor of a body of water, said apparatus comprising an elongated sheet located beneath the surface of the water in at least partially upwardly spaced relationship close to but above said floor, means for maintaining said elongated sheet so positioned, said maintaining means are a plurality of elements supporting said sheet along spaced points of the length thereof, and said sheet is of undulating configuration as viewed in transverse cross section along the length thereof.
Claim 3
Dependent Claim
16 words
The apparatus as defined in claim 1 wherein the sheet is constructed of relatively rigid material.
Claim 4
Dependent Claim
96 words
Apparatus for producing and protecting deposits of sedimentary material on a floor of a body of water, said apparatus comprising a flexible elongated sheet located beneath the surface of the water in at least partially upwardly spaced relationship close to but above said floor, means for maintaining said flexible elongated sheet so positioned, said flexible elongated sheet includes a longitudinally extending central portion and longitudinally extending side portions diverging relative to said floor, first aperture means along the length of said central portion, and second aperture means along the length of each of said side porTions.
Claim 5
Dependent Claim
96 words
Apparatus for producing and protecting deposits of sedimentary material on a floor of a body of water, said apparatus comprising a flexible elongated sheet located beneath the surface of the water in at least partially upwardly spaced relationship close to but above said floor, means for maintaining said flexible elongated sheet so positioned, said flexible elongated sheet includes a longitudinally extending central portion and longitudinally extending side portions diverging relative to said floor, first aperture means along the length of said central portion, and second aperture means along the length of each of said side porTions.
References Cited (Backward Citations)
US3830066A
Cited
US3844123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |