Shock sensor switch having a liquid conductor
US5359162A · kind A · utility
5Cited by
7References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 3, 1994 |
| Grant date | Oct 25, 1994 |
| Priority date | — |
| Expiry date | Jan 3, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H29/002
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A shock sensor comprises a housing defining an interior space. The space includes a cylindrical side surface and an end surface, the surfaces being formed of an electrically conductive material. An insert is positioned in the space and includes an electrically conductive support surface which defines a recess facing the conductive end surface. A volume of mercury is contained in the recess. The support surface is wetted to the liquid, and the end and side surfaces are not wetted to the liquid, so that the liquid moves into electrical contact with the end surface and/or side surface in response to shocks and is thereafter restored.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.