Depth finder transducer system
US5546362A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 1995 |
| Grant date | Aug 13, 1996 |
| Priority date | — |
| Expiry date | May 15, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/96
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A depth finder system of the present invention permits detection of the presence of objects within a body of water located below a body of ice. The depth finding system includes a display unit, an electrically conductive cable, and a transducer. The display unit is locatable on the body of ice adjacent a hole in the body of ice while the electrically conductive cable is electrically connected to the display unit. The transducer is capable of transmitting a sonar sensing wave in the shape of a cone through the body of water to detect the present of objects therein. The transducer system can include a positioning means for selectively fixing the conductive cable relative to the positioning means for selectively controlling the length of cable permitted to extend within a body of water below the body of ice.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.