Semi-tractor fifth wheel sensor and rail car stanchion sensor for a trailer
US6587041B1 · kind B1 · utility
26Cited by
19References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 20, 2000 |
| Grant date | Jul 1, 2003 |
| Priority date | — |
| Expiry date | Apr 20, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G19/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system is provided for sensing the presence of a semi-tractor as the mechanical connection between a trailer and a fifth wheel of the semi-tractor is made, or for sensing the presence of a rail car as the mechanical connection between the trailer and a stanchion plate of the rail car is made. A sensor is provided in the floor of the trailer proximate to the kingpin. The sensor senses the presence of the fifth wheel or the rail car stanchion plate during the connection process. Control circuitry on the trailer processes and uses signals from the sensor to perform various functions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.