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US4130994A Expired / Lapsed US ⏱️ 0.0 years remaining

Artificial reef to prevent shoreline erosion

Assignee: Individual
•
Filing: 1977-05-27
•
Granted: 1978-12-26
•
Expires: 1997-05-27
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Abstract

Abstract This invention relates to means to produce an artificial reef or floating breakwater wherein a series of buoyant disks are strung on a buoyant flexible line in spaced relation to each other with the lower end of the line being tethered to its own anchor. These tethered disks are placed preferably in about 6 to 18 feet water depth from the shoreline. A series of these disk-anchors are strung along in or out of lines paralleling the shoreline and in various depths of water to provide effective grid means for eliminating or at least substantially reducing the erosion effect along shorelines resulting from wave action. The placement of the disk-rope anchor units is preferably in the water paralleling the shoreline and each unit is spaced apart from the other. However, the spacing is not critical but to accomplish the results sought to be achieved, the spacing ought to be close enough to be effective and yet not tangle with each other. Also, several rows of the units may be employed in staggered relationship with each row, and the units may be removed at will.

Inventors

  • 👤 John H. Van Moss, Jr.

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 18:45
CPC Classifications
E; E02; E02B; E02B3/00; E02B3/04; E02B3/046; Y; Y02; Y02A; Y02A10/00; Y02A10/26

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 107 words
A grid for controlling shoreline erosion by controlling the water movement throughout the full water column each part making up the grid comprising a series of buoyant curved disks, each disk having an arcuate body with the free margins bent downwardly in a taper, and said disk provided with an axial hollow hub, a flexible line on which said disks are spacedly secured, an anchor, one end of said line tethered to said anchor while the uppermost disk on the line is positioned at the water surface, whereby the uppermost disks tend to break up surface currents while the lowermost disks are responsive to the bottom currents.
Claim 2
Dependent Claim 107 words
A grid for controlling shoreline erosion by controlling the water movement throughout the full water column each part making up the grid comprising a series of buoyant curved disks, each disk having an arcuate body with the free margins bent downwardly in a taper, and said disk provided with an axial hollow hub, a flexible line on which said disks are spacedly secured, an anchor, one end of said line tethered to said anchor while the uppermost disk on the line is positioned at the water surface, whereby the uppermost disks tend to break up surface currents while the lowermost disks are responsive to the bottom currents.
Claim 3
Dependent Claim 47 words
The device according to claim 1 wherein the disks are strung on the line through the hub, and a fluid adhesive is impregnated in the line about and in the area of the hub to anchor the disks to the line in spaced relation to each other.
Claim 4
Dependent Claim 21 words
The device according to claim 2 wherein disks are molded of polyurethane foam 15-20 pounds per foot to the third power.
Claim 5
Dependent Claim 14 words
The device of claim 1 wherein the disks have a diameter of eighteen inches.
Claim 6
Dependent Claim 19 words
The device of claim 4 wherein the disks are spacedly positioned on the line at about thirty inches apart.

References Cited (Backward Citations)

US3022632A Cited
US3846990A Cited
FR2252009A5 Cited
US4006598A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1981-12-25 1982-06-26 1982-12-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1985-12-25 1986-06-26 1986-12-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1989-12-25 1990-06-26 1990-12-26 $7700.00 Window Closed / Lapsed

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