Method and apparatus for detecting objects dragging beneath a train
US6412332B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 31, 1999 |
| Grant date | Jul 2, 2002 |
| Priority date | — |
| Expiry date | Aug 31, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61L23/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A dragger detects objects dragging beneath a train as the train travels along a track. The dragger includes at least one stationary impact element and a detection circuit including at least one sensor coupled with impact element for sensing the force of the impacts between the objects and the impact element. A method for detecting objects dragging beneath a train involves positioning the stationary impact element along the track in a fixed position intersecting the path of movement of the objects. The method also involves sensing the force of each impact and generating an output signal if the magnitude of any impact is greater than a predetermined magnitude.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.