Transportation system and displacement device therefor
US10081374B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 30, 2014 |
| Grant date | Sep 25, 2018 |
| Priority date | — |
| Expiry date | Oct 13, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T30/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A transportation system including a tubular rail assembly, a displacement device with at least one helical propulsion system located in a first position to be received in one rail and movable to a second position to be received in another rail, a switching mechanism engaged to each propulsion system for movement between the first and second positions, and a transportation device outside of the rail assembly and attached to the displacement device. Also, a displacement device with at least one pair of support members each supporting a helical propulsion system, and a biasing member circumferentially biasing the support member of each pair in opposite directions. Also, a displacement device with at least one tubular support member surrounding the body and circumferentially movable with respect thereto and supporting a set of angled wheels, and a switching mechanism engaged to each member for actuating the circumferential movement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.