Sand dosing and blocking device
US8517432B2 · kind B2 · utility
2Cited by
12References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 18, 2009 |
| Grant date | Aug 27, 2013 |
| Priority date | — |
| Expiry date | Apr 25, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61C15/107
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A sand dosing and blocking device for sand spreading systems for vehicles, particularly rail vehicles with drive, has a sand supply container with an outlet opening which can be closed by a closing element for the dosed release of sand to a conveyor unit which is preferably pneumatically activated. The closing element is formed by a lifting rod of an electrically activated lifting magnet. The lifting magnet is arranged inside the sand supply container in the area of the outlet opening. Frequency control of the lifting magnet varies the dosed flow of sand, which may be varied in response to vehicle wheel speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.