Turn signal/brake light converters for towed vehicles
US6087777A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 12, 1999 |
| Grant date | Jul 11, 2000 |
| Priority date | — |
| Expiry date | May 12, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Q2800/20
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A converter circuit connected between the signal light control system of a towing vehicle and the turn signal and brake lamps of a towed farm implement discriminates between braking signals and turn signals appearing at the same pin positions of a connector receptacle by timing the duration of the signals. In a second embodiment providing for enhanced lighting of farm implements when traveling on public roads, latching relays establish circuits for flashing the brake lamp in the direction of turn. A switch may be provided to enable the enhanced lighting when the towing vehicle is a tractor, or disable the enhanced lighting and permit the implement turn signal and brake lights to mimic the operation of the turn signal and lights on a truck when the towing vehicle is a truck.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.