US3740098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-wheel underwater excavation machine
Assignee: Deutsche Babcock and Wilcox AG
•
Filing: 1971-03-19
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Granted: 1973-06-19
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Expires: 1991-03-19
Abstract
Abstract An underwater excavating device having a cutting means to cut into underwater land surfaces, a collecting means for collecting the excavated material, and conveying means for conveying the collected material from the cutting means to the collecting means. A transporting wheel is centrally disposed on the device and has radially outwardly extending edges disposed laterally on each side of the wheel which form a channel around the circumference of the wheel. The conveyor belt, which is adapted to be received by the radially extending edges of the wheel and is disposed on theexcavating device so as to be guided in the channel, conveys the collected material from the cutting means to the collecting means.
Inventors
- 👤 F Lachnit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:43
CPC Classifications
E; E02; E02F; E02F5/00; E02F5/006; E02F3/00; E02F3/04; E02F3/88; E02F3/90; E02F3/92; E02F3/9212
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
182 words
An underwater excavating device having a cutting means to cut into land surfaces underwater, a collecting means for collecting the excavated material, and conveying means for conveying the collected material from the cutting means to the collecting means, the improvements comprising: a transporting wheel, centrally disposed on the device, having radially outwardly extending edges disposed laterally on either side of said wheel, forming a channel around the circumference of said wheel, and a plurality of cut-outs disposed in said radially outwardly extending edges; and a conveyor belt, disposed between said radially outwardly extending edges of said wheel so as to be guided in said channel formed by said radially outwardly extending edges, for conveying the material collected from the cutting means to the collecting means, and including a plurality of rib members which extend laterally beyond the edges of said conveyor belt so as to engage said cut-outs provided in said radially outwardly extending edges of said wheel, said cutouts and said rib members cooperating so that the speed of said conveyor belt corresponds to the peripheral speed of said transporting wheel.
Claim 2
Dependent Claim
182 words
An underwater excavating device having a cutting means to cut into land surfaces underwater, a collecting means for collecting the excavated material, and conveying means for conveying the collected material from the cutting means to the collecting means, the improvements comprising: a transporting wheel, centrally disposed on the device, having radially outwardly extending edges disposed laterally on either side of said wheel, forming a channel around the circumference of said wheel, and a plurality of cut-outs disposed in said radially outwardly extending edges; and a conveyor belt, disposed between said radially outwardly extending edges of said wheel so as to be guided in said channel formed by said radially outwardly extending edges, for conveying the material collected from the cutting means to the collecting means, and including a plurality of rib members which extend laterally beyond the edges of said conveyor belt so as to engage said cut-outs provided in said radially outwardly extending edges of said wheel, said cutouts and said rib members cooperating so that the speed of said conveyor belt corresponds to the peripheral speed of said transporting wheel.
Claim 3
Dependent Claim
38 words
The underwater excavating device as recited in claim 1, wherein said conveyor belt further comprises pivotable plates mounted across the width of said conveyor belt, for conveying the excavated material from the cutting means to the collecting means.
Claim 4
Dependent Claim
47 words
The underwater excavating device as recited in claim 2, wherein said transporting wheel and said conveyor belt are provided with a plurality of openings which permit undesirable material to be rinsed away during the excavating operation so that only desirable material is collected in the collecting means.
Claim 5
Dependent Claim
40 words
The underwater excavating device as recited in claim 3, further comprising at least two supporting wheels, rotatably mounted on a common rigid axis with said transporting wheel, for supporting the excavation device and allowing movement thereof across underwater land surfaces.
Claim 6
Dependent Claim
27 words
The underwater excavating device as recited in claim 4, further comprising a plurality of cylindrical collecting drums, disposed within said supporting wheels, for collecting the excavated material.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |