Tubular switch and device for connecting the switch
US6166338A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 11, 1999 |
| Grant date | Dec 26, 2000 |
| Priority date | — |
| Expiry date | Jan 11, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B7/104
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A tubular switch which is normally off, instantaneously turned on by external pressure, and has long detection distance. The tubular switch comprises a tubular hose member having insulating property and elasticity, and a plurality of flexible conductive members which are spirally fixed to the internal surface of the hose member so that the surfaces of the conductive members should be partially exposed to the internal space of the hose member at any section of the hose member. The tubular switch has durability, can be installed any place, and can have a long detection range, and, in addition, any faults are easily found, repaired and adjusted, it has a simple structure and flexibility, and it can be manufactured at a low cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.