Switch box for railway, tramway points, or similar, particularly of the so called english type
US6511024B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 18, 2000 |
| Grant date | Jan 28, 2003 |
| Priority date | — |
| Expiry date | May 18, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61L5/107
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Switch box for railway, tramway, points or similar, of the so called english type i.e. having four or more blades comprising a drive unit (M, 3, 4, 5, 5′, 5″, 5′″, 6) of the transfer motion of the blades (A1, A1′, A2, A2′) of the switch, and at least one group (12, 18, 120, 21, 24) of linear transmission of the drive motion to the blades, movable means (24, 124) to lock the blades in their respective position of closure. According to the invention, the said groups are housed in a box (1) which has substantially the dimensions and the shape of a sleeper and that is fitted in the track in place of and with the function of a sleeper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.