US4406633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power take-off gearing for assembly at a marine vessel drive or propulsion system
Assignee: Maag Gear Wheel and Machine Co Ltd
•
Filing: 1981-05-04
•
Granted: 1983-09-27
•
Expires: 2001-05-04
Abstract
Abstract With this power take-off gearing, intended to be installed at a propulsion system or drive of a marine vessel, there can be taken-off part of the vessel's drive output at one or a number of auxiliary drive units. The drive or propulsion system of the vessel is mounted upon the ship's foundation and essentially comprises a main engine, a speed reduction gear unit containing a power take-off shaft, a multi-part propeller shaft which extends through a power take-off gearing, and a propeller attached to the propeller shaft. The power take-off gearing is arranged in a housing and supported as a self-contained unit upon the ship's foundation independent of the propeller shaft. A large gear mounted in the housing of the power take-off gearing is driven by the propeller shaft through a moveable clutch which is constructed as a double tooth clutch. The power take-off gearing is connected with a generator.
Inventors
- 👤 Robert Hamm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:09
CPC Classifications
B; B63; B63H; B63H23/00; B63H23/30; B63J; B63J3/00; B63J3/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
217 words
In a power take-off gearing for installation at a drive of a vessel having a foundation, wherein a propeller shaft is flanged to a power take-off shaft of a drive arrangement and a large gear of the power take-off gearing is arranged coaxially with respect to the propeller shaft and is driven by such propeller shaft, the large gear being arranged within a housing which is supported as a self-contained unit at the foundation of the vessel, the improvement which comprises: the housing of the power take-off gearing being structured to be supported at the foundation of the vessel independent of the propeller shaft; the large gear of the power take-off gearing possessing a hollow hub and being mounted in said housing; a moveable clutch for connecting the hollow hub of the large gear with the propeller shaft; said moveable clutch containing a clutch sleeve and a clutch ring; said clutch sleeve being arranged about the propeller shaft with radial play and partially within the hollow hub; said clutch ring being secured at a flange of the propeller shaft; the smallest internal diameter of the clutch sleeve being larger than the external diameter of the flange of the propeller shaft; and the clutch ring being divided in a plane extending in axial direction of the clutch ring.
Claim 2
Dependent Claim
217 words
In a power take-off gearing for installation at a drive of a vessel having a foundation, wherein a propeller shaft is flanged to a power take-off shaft of a drive arrangement and a large gear of the power take-off gearing is arranged coaxially with respect to the propeller shaft and is driven by such propeller shaft, the large gear being arranged within a housing which is supported as a self-contained unit at the foundation of the vessel, the improvement which comprises: the housing of the power take-off gearing being structured to be supported at the foundation of the vessel independent of the propeller shaft; the large gear of the power take-off gearing possessing a hollow hub and being mounted in said housing; a moveable clutch for connecting the hollow hub of the large gear with the propeller shaft; said moveable clutch containing a clutch sleeve and a clutch ring; said clutch sleeve being arranged about the propeller shaft with radial play and partially within the hollow hub; said clutch ring being secured at a flange of the propeller shaft; the smallest internal diameter of the clutch sleeve being larger than the external diameter of the flange of the propeller shaft; and the clutch ring being divided in a plane extending in axial direction of the clutch ring.
Claim 3
Dependent Claim
115 words
The improvement as defined in claim 1, wherein: said moveable clutch comprises a double tooth clutch; said double tooth clutch containing two clutch teeth arrangements, each of which is disposed at one respective end of the clutch sleeve; said hub and said hollow clutch ring having respective clutch teeth arrangements; said clutch teeth arrangements of the clutch sleeve respectively engaging with said clutch teeth arrangement of the hollow hub and the clutch teeth arrangement of the clutch ring; the length of the clutch sleeve at most being equal to the length of the hollow hub; and the clutch teeth arrangement of the hollow hub being located at a plane of symmetry of the hollow hub.
Claim 4
Dependent Claim
15 words
The improvement as defined in claim 1, wherein: said drive arrangement comprises a main engine.
Claim 5
Dependent Claim
14 words
The improvement as defined in claim 1, wherein: said drive arrangement comprises gearing means.
Claim 6
Dependent Claim
40 words
The improvement as defined in claim 4, wherein: said housing of the power take-off gearing is arranged in spaced relationship from said gearing means of said drive arrangement and constitutes a separate structural unit in relation to said gearing means.
Claim 7
Dependent Claim
36 words
The improvement as defined in claim 1, wherein: said housing of the power take-off gearing is arranged in spaced relationship from said drive arrangement and constitutes a separate structural unit in relation to said drive arrangement.
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) | 1986-09-26 | 1987-03-28 | 1987-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-26 | 1991-03-28 | 1991-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-26 | 1995-03-28 | 1995-09-27 | $7700.00 | Window Closed / Lapsed |