Airport landing indicator apparatus
US4201973A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 1978 |
| Grant date | May 6, 1980 |
| Priority date | — |
| Expiry date | Jul 21, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G5/54
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Airport landing indicator apparatus designed basically for remote airports and landing fields including means responsive to wind direction and a pair of runway locators, in the form of lighted directional arrows, located at opposing ends of a runway. Wind direction determines which of the arrows will be lit for maximum safety in landing. Each of the runway locators includes a multiplicity of high intensity lamps forming an outline of a first arrow and a multiplicity of low intensity lamps contained within the confines of the high intensity lamps forming a second arrow. All lamps of a particular runway locator may be turned on by radio control from an approaching aircraft. The high intensity lamps, necessary for long distance observation, are automatically turned off by means of a photoelectric cell actuated by landing lights of the approaching aircraft to prevent temporary blindness. The apparatus may also contain a lighted specific wind direction indicator and a wind velocity indicator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.