Side tension brake condition sensor
US6474451B1 · kind B1 · utility
18Cited by
3References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 16, 2001 |
| Grant date | Nov 5, 2002 |
| Priority date | — |
| Expiry date | Aug 16, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T17/228
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A sensor for determining the on/off condition of a railroad car handbrake that utilizes a manual wheel which applies tension to a chain extending under the car to the brake setting system and the sensor utilizes a bias member which pushes against the side of the chain so that when the car brakes are not set, and the chain is loose, the bias member moves to distort the chain and such movement causes a sensor, such as a Hall effect device, to approach a magnetic member to produce a signal indicating that the brake is in a released condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.