Self-righting inflatable life raft
US4998900A · kind A · utility
Inventor
Key dates
| Filing date | Jun 19, 1990 |
| Grant date | Mar 12, 1991 |
| Priority date | — |
| Expiry date | Jun 19, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63C2009/044
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A self-righting inflatable life raft including a raft body having inflatable sidewalls and an inflatable member extending from the raft body having a buoyant portion sufficient to provide lifting force to move the raft's center of gravity beyond its point of rotation on the surface of water such that the raft will topple by gravity to an upright position. The inflatable member may include a plurality of inflatable tube portions which extend from an upper edge of the raft sidewalls to a first predetermined position upwardly and outboard from the upper edge and which then extend inboard to centrally converge with one another at a second predetermined position above the raft body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.