Ice detector for protecting boats
US5021769A · kind A · utility
4Cited by
2References
2Claims
0Family size
Inventor
Key dates
| Filing date | Apr 27, 1990 |
| Grant date | Jun 4, 1991 |
| Priority date | — |
| Expiry date | Apr 27, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B19/02
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Ice Detector for Protecting Boats has a waterproof hollow float. An electro-magnet is mounted in the float. A flexible arm is rigidly mounted on one side of said float. A first metal segment is mounted in the arm and placed to be attracted by the magnet. A metal detector is mounted in the float. A second metal segment is mounted in the arm and placed to come into closer proximity to the detector when the arm flexes, whereby, ice forming between the wall of the float and the arm will prevent movement of the arm and will detect the formation of ice.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.