Bipolar immersion detection circuit interrupter
US4823225A · kind A · utility
12Cited by
13References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 6, 1988 |
| Grant date | Apr 18, 1989 |
| Priority date | — |
| Expiry date | Jan 6, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H5/083
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An immersion detector comprises a pair of spring biased circuit breaking contacts for removing power from an appliance. The appliance has a sensing circuit which may become energized if it is dropped into a body of an electrically conductive liquid, such as a sink full of water. An SCR is connected to each side of the line and is triggered by an energization of said sensing circuit so that it is irrelevant which side of the line is hot and which side is at neutral. When either SCR conducts, a solenoid releases the spring bias which causes the circuit breaking contacts to fly apart.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.