Ice protection of aerodynamic surfaces
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United States of America Patent
Stats
-
Sep 26, 2017
Grant Date -
May 1, 2008
app pub date -
Feb 3, 2006
filing date -
Feb 9, 2005
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An electrothermal heater mat for anti-icing or de-icing of a helicopter rotor blade or other aerodynamic surface comprises a substrate, such as a flexible polyimide sheet, bearing tracks of a material of selected electrical resistivity, these tracks being formed by printing onto the substrate with a thermosetting ink loaded with electrically conductive (e.g. carbon) particles. Electrical bus bars/terminals for the supply of electrical energy to the resistive tracks may also be printed, using an ink loaded with particles of higher conductivity material such as copper or silver.
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International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 5 Citation Count
- B64D Class
- 19.15 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Mar 26, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 26, 2029 |
