Patent US3733831A successfully refreshed from Google Patents.
US3733831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for preventing erosion and for conveying
Assignee: Gray Tech Industries Inc
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Filing: 1971-03-12
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Granted: 1973-05-22
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Expires: 1991-03-12
Abstract
Abstract This invention relates to improvements for preventing erosion of beaches by tidal waves comprising placing a plurality of conduit units in mating end-to-end relationship and bolting them together by stressing wires extending through registering holes. Each unit has a pair of deep legs or drag footers through which fluid is forced so as to stabilize the support. The same type of structure when considerably increased in size may serve as a vehicular tunnel and may be provided with a horizontal partition to provide ventilation at the top of the tunnel.
Inventors
- 👤 C Sticker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:47
CPC Classifications
E; E02; E02B; E02B3/00; E02B3/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
145 words
A cementitious elongated tubular assembly comprising a plurality of tubular units disposed in end-to-end relationship, each unit comprising a hollow enclosure defined by a cementitious, substantially semi-circular wall supported on an integral, diametrically extending base portion forming a horizontal floor, said floor having integral outer extensions projecting beyond the outer diameter of said wall, spaced parallel footers integral with and extending downwardly, substantially at right angles, from said floor at its juncture wiTh said extensions, each unit having projections on one end which closely fit into correspondingly shaped grooves in the end of an adjoining unit for preventing lateral displacement of the units, and conduit means extending through opposite sides of said wall and downwardly through said footers to introduce fluid under pressure for blowing away sand or earth immediately below said footers to enable said unit to be seated easily in sand or soil.
Claim 2
Dependent Claim
145 words
A cementitious elongated tubular assembly comprising a plurality of tubular units disposed in end-to-end relationship, each unit comprising a hollow enclosure defined by a cementitious, substantially semi-circular wall supported on an integral, diametrically extending base portion forming a horizontal floor, said floor having integral outer extensions projecting beyond the outer diameter of said wall, spaced parallel footers integral with and extending downwardly, substantially at right angles, from said floor at its juncture wiTh said extensions, each unit having projections on one end which closely fit into correspondingly shaped grooves in the end of an adjoining unit for preventing lateral displacement of the units, and conduit means extending through opposite sides of said wall and downwardly through said footers to introduce fluid under pressure for blowing away sand or earth immediately below said footers to enable said unit to be seated easily in sand or soil.
Claim 3
Dependent Claim
29 words
A structure as recited in claim 1 wherein said conduit means includes a single inlet on each side of said wall feeding a plurality of outlet outlets said footers.
Claim 4
Dependent Claim
62 words
A structure as recited in claim 1 together with slots extending along both sides of said wall to permit lateral flow therethrough of water from tidal waves to enable said units to be used for preventing erosion along a beach and wherein said extension which is on the side of said tidal waves is substantially greater than the opposite extension located landside.
Claim 5
Dependent Claim
41 words
A structure as recited in claim 1 wherein said tubular units include a plurality of registering holes extending longitudinally therethrough, and a tensioning rod extending through each of the holes so that when tensioned, said units will be tightly held together.
Claim 6
Dependent Claim
27 words
A structure as recited in claim 1 wherein said units include registering horizontally extending partition walls to define an upper ventilating chamber and a lower vehicular tunnel.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |