Global Patent Index - EP 1028892 A1

EP 1028892 A1 2000-08-23 - DE-ICING AIRCRAFT USING MICROWAVES

Title (en)

DE-ICING AIRCRAFT USING MICROWAVES

Title (de)

ENTEISUNG VON FLUGZEUGEN MIT MIKROWELLEN

Title (fr)

DEGIVRAGE D'AERONEFS AU MOYEN DE MICRO-ONDES

Publication

EP 1028892 A1 (DE)

Application

EP 98959801 A

Priority

  • DE 19750198 A
  • EP 9806784 W

Abstract (en)

[origin: DE19750198A1] Structures critical to lift generation and vulnerable to icing, comprise aircraft-qualified dielectric and composites, transparent to electromagnetic radiation above 20 GHz. Pulsed or continuous microwave sources carried, generate outside avionic wavebands, feeding automatically switched waveguides to antennae sited near critical structures, radiating power levels continuously or in accordance with weather conditions and criticality, to prevent condensation of water droplets. High-mode, flexible waveguides, couple with constant power cross section, planar homogenous antennae with controlled power delivery. Heating is induced instantly and uniformly, in the composite structure and in any surface icing. Microwave sources are redundantly interconnected by waveguides, with bypass switching to assure failure tolerance.

IPC 1-7 (main, further and additional classification)

B64D 15/12

IPC 8 full level (invention and additional information)

B64D 15/12 (2006.01)

CPC (invention and additional information)

H05B 6/80 (2013.01); B64D 15/12 (2013.01); H05B 2214/02 (2013.01)

Citation (search report)

See references of WO 9925614A1

Designated contracting state (EPC)

DE ES FR GB

EPO simple patent family

DE 19750198 A1 19990527; DE 19750198 C2 19991021; EP 1028892 A1 20000823; US 6207940 B1 20010327; WO 9925614 A1 19990527

INPADOC legal status


2001-12-12 [18W] WITHDRAWN

- Date of withdrawal: 20011020

2000-10-25 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20000912

2000-08-23 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000306

2000-08-23 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE ES FR GB