Dredge head assembly and related diver-assisted dredging system and methods
US11674286B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2016 |
| Grant date | Jun 13, 2023 |
| Priority date | — |
| Expiry date | May 11, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A dredge head assembly is disclosed. The assembly includes: a shroud having a generally open bottom end and a top end; a screen structure covering the generally open bottom end of the shroud; a suction pipe with a first end connected to the top end of the shroud and a second end configured to be operatively connected with a pump which induces suction; a handle connected to and extending from the shroud and having at least one grasping portion; and one or more vacuum relief valve assemblies, each comprising a valve, at least one opening configured to be in communication with water, and an actuation mechanism positioned to be accessible to a diver. Dredging systems and methods of dredging are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.