Lighting and/or indicating means for use in fog
US5894272A · kind A · utility
9Cited by
6References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 1992 |
| Grant date | Apr 13, 1999 |
| Priority date | — |
| Expiry date | May 29, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Q2300/312
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Apparatus for lighting and/or indicating purposes, on a vehicle such as a motor vehicle that has a rear fog lamp. The apparatus includes an electrical supply and a control circuit connecting the electrical supply to the fog lamp and/or an indicator. The control circuit is responsive to activating signals from a fog detector that is adapted to produce the activating signal when a condition of reduced visibility exists in the environment of the vehicle. This activating signal, moreover, is generated in response to electromagnetic waves reflected to a receiver coupled to the fog detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.