Patent US3590766A successfully refreshed from Google Patents.
US3590766A
Expired / Lapsed
US
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Steering unit for barges and the like
Assignee: Hydro Vac Inc
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Filing: 1969-02-25
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Granted: 1971-07-06
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Expires: 1989-02-25
Abstract
Abstract Steering unit for barges and the like having bottom and upstanding sides. Tube carried by barge extends transversely thereof with intermediate portion of tube communicating with downwardly and outwardly extending end portions terminating adjacent elevation of barge bottom. Propeller unit within tube moves water selectively in opposite directions to move adjacent portion of barge in opposite directions. Baffles adjacent side of propeller direct water toward the leading faces or propeller as water flows in direction to position baffle on suction side of propeller.
Inventors
- 👤 William M Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:50
CPC Classifications
B; B63; B63H; B63H25/00; B63H25/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
In a steering unit for barges and the like having a bottom wall and upwardly extending sidewalls. a. a tube carried by said barge and extending in a direction transversely thereof with an intermediate portion of said tube communicating with downwardly and outwardly extending end portions which terminate at an elevation adjacent the elevation of said bottom wall whereby water is drawn into said tube and discharged therefrom at an elevation adjacent the elevation of said bottom wall, b. at least one propeller unit mounted for rotation within said tube for conveying water therethrough and comprising an axial flow pump having radially extending blades mounted for rotation inwardly of a shroud structure having two axially juxtaposed, annular inwardly directed convex surfaces defining adjacent venturi sections with a common axis and an annular depression therebetween, c. means to rotate said propeller unit, and d. means to reverse the direction of flow of water through said tube selectively in opposite directions to move adjacent portion of the barge selectively in opposite directions.
Claim 2
Dependent Claim
170 words
In a steering unit for barges and the like having a bottom wall and upwardly extending sidewalls. a. a tube carried by said barge and extending in a direction transversely thereof with an intermediate portion of said tube communicating with downwardly and outwardly extending end portions which terminate at an elevation adjacent the elevation of said bottom wall whereby water is drawn into said tube and discharged therefrom at an elevation adjacent the elevation of said bottom wall, b. at least one propeller unit mounted for rotation within said tube for conveying water therethrough and comprising an axial flow pump having radially extending blades mounted for rotation inwardly of a shroud structure having two axially juxtaposed, annular inwardly directed convex surfaces defining adjacent venturi sections with a common axis and an annular depression therebetween, c. means to rotate said propeller unit, and d. means to reverse the direction of flow of water through said tube selectively in opposite directions to move adjacent portion of the barge selectively in opposite directions.
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 |