Portable surface wind indicator
US4080925A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 14, 1977 |
| Grant date | Mar 28, 1978 |
| Priority date | — |
| Expiry date | Mar 14, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P13/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A resuable portable wind indicator comprises a central body member having four elongated arms extending radially outward therefrom at equal angles of 120 degrees from adjacent arms and connected to the central body member by coil springs, with each arm including a ribbon or the like at the outer end thereof. The outwardly extending arms can be folded up in one direction for packaging in a small container and, when released from an aircraft or the like, will spring outward such that when the indicator lands one arm will be extended in the upward direction such that the ribbon or flag on the end thereof will be blown by the wind in the direction of the wind. The radial arms are mounted by means of coil springs through a central body which may either consist of a spherical member with radial bores for threadably receiving the springs, or a radially extending plurality of studs for threadably receiving the coil springs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.