Aerodynamic article with protective coating and method of...

Details Aerodynamic article with protective coating and method of... Aerodynamic article with protective coating and method of...

2005-11-01

2005-11-01

Look, Edward K. (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Laminated, embedded member or encased material

C416S24100B, C415S200000

Reexamination Certificate

active

06960065

ABSTRACT:
To protect an article with an aerodynamic surface, such as an aeroplane propeller or helicopter rotor, from erosive damage caused by flying particulate matter, a thin elastomeric protective covering is provided. This layer covers approximately 15% of a forward face (15) a leading edge (12), and approximately 90% of the rear face (13) of the article. Typically, it is made of polyurethane with hardness between 85 Shore A and 80 Shore D. It is applied by centrifugal casting using a silane log gammaglycidoxporpyl-tri-methoxysilane as a coupling agent when bonding to a metal surface such as aluminum.

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patent: 5123814 (1992-06-01), Burdick et al.
patent: 5145320 (1992-09-01), Blake et al.
patent: 5344235 (1994-09-01), Weetman et al.
patent: 32 17 172 (1983-12-01), None
patent: 1 349 383 (1974-04-01), None
patent: 2 047 188 (1980-11-01), None

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