Stable wave motor
US5842838A · kind A · utility
Inventor
Key dates
| Filing date | Nov 4, 1996 |
| Grant date | Dec 1, 1998 |
| Priority date | — |
| Expiry date | Nov 4, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A wave motion energy harvesting apparatus of the invention comprises a float portion detachably interfitted with and axially moveable with respect to a hydrodynamically resistive portion. The float portion of this apparatus is moored by means of a line attached adjacent its vertical axis, but the hydrodynamically resistive portion is neither anchored nor moored except by its being interfitted with the float portion. Both the float and the hydrodynamically resistive portions are separately configured to have their mass distributed evenly about a common vertical axis of the apparatus. The float portion of the apparatus is nearly neutrally buoyant and comprises an automatically filled water ballast tank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.