Moving device in pipe lines
US7441507B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2005 |
| Grant date | Oct 28, 2008 |
| Priority date | — |
| Expiry date | Aug 17, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K99/20
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A moving device in pipe lines is provided, which allows easy switching of moving/stopping and remote control of the switching by only electric wires enabling easy operation in the inside of small diameter pipe lines.The moving device 10 in pipe lines comprises a guide frame 11 in which a line of three or more coils 15, 16, 17 is interconnected flexibly in the direction of magnet flux, ring-shaped permanent magnets 19, 20, 21 provided around the periphery of the guide frame slidably in the direction of the shaft, and a control means such as computers etc. to control by a preset program selecting the direction of turning on of the coils.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.