Micro-switches for downhole use
US7116542B2 · kind B2 · utility
35Cited by
10References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2001 |
| Grant date | Oct 3, 2006 |
| Priority date | — |
| Expiry date | May 4, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H59/0009
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A downhole tool includes a device to be activated by electrical energy and a micro-switch that includes conductors and an element between the first and second conductors selected from the group consisting of: a dielectric element capable of being modulated to provide a conductive path in response to receipt of electrical energy; and an element moveable in response to application of an electrical energy. The micro-switch may be formed of microelectromechanical system (MEMS) technology or microelectronics technology.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.