Truck trailer lighting control circuit
US5027031A · kind A · utility
6Cited by
1References
6Claims
0Family size
Inventor
Key dates
| Filing date | Aug 23, 1989 |
| Grant date | Jun 25, 1991 |
| Priority date | — |
| Expiry date | Aug 23, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Q1/305
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting control circuit having particular adaptability to tractor-trailer truck usage where a considerable increase of illumination is provided for the best interests of safety. The circuitry provides non-blinking left and right turn signal lights which supplement the blinking of the existing turn signal lights. Additionally, backup lights are programmed into the circuit operation. Through the use of a four-way flasher control, all the lights on the vehicle are caused to serve flashing, signaling an/or blinking purposes, except those provided by the invention which remain non-blinking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.