Deicing apparatus and method
US4060212A · kind A · utility
32Cited by
3References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 1, 1976 |
| Grant date | Nov 29, 1977 |
| Priority date | — |
| Expiry date | Apr 1, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2214/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system for effecting the removal of ice from external surfaces of aircraft, and particularly from helicopter rotor blades, by the transmission of microwave electromagnetic energy into the ice so that it functions as a surface waveguide. The system includes a permanent surface waveguide with a dielectric constant close to that of ice, so that a composite surface waveguide is formed. The permanent surface waveguide is formed from a characteristically low-loss material, so that the microwave energy is dissipated as heat primarily in the ice layer, thereby very efficiently melting or heating the ice.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.