Self-propelled dredging apparatus
US4095545A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 2, 1977 |
| Grant date | Jun 20, 1978 |
| Priority date | — |
| Expiry date | Mar 2, 1997 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B3/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An improved self-propelled floating dredging apparatus including a buoyant hull structure carrying a pilot house and engine compartment. The buoyant hull comprises a pair of longitudinally aligned parallel pontoons to provide flotation. A rigid boom structure extends forwardly from the medial portion of the hull structure and is adapted to pivot about a horizontal axis, from a horizontal position to a submerged position, in response to the action of a pair of power cylinders and an interconnecting linkage. A diesel engine in the engine compartment drives a centrifugal dredging pump and a hydraulic fluid pump. A hydraulically driven, steerable water jet propulsion assembly is mounted on a transom at the aft end portion of the hull structure. A hydraulically driven cable winch mechanism is also mounted on the hull structure. An improved hydraulically driven dredging head is mounted on the forward end of the boom structure and employs enlarged cylindrical surfaces carrying radially outwardly extending cutter blades journaled thereon for rotation about a horizontal axis. A notched cutter bar is mounted intermediate a rigid plate and the enlarged cylinders through which the cutter blade…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.