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US 2018/0021898 A1Published application
Method for repairing an airfoil surface having an elastomeric protective coating
AssigneeHontek Corporation
InventorShek C. Hong
Life of this patent
Estimating the term…
Abstract
This invention relates to the repair and removal of erosion or impact damage using hand sandable elastomeric coatings on a curved substrate, particularly such surfaces as the leading edge of the airfoil. Specialized applicators and methods of use are also disclosed.
Claims7
A method of repairing an airfoil surface having an elastomeric protective coating adhered to a portion of said airfoil surface having a plurality of damage cavities caused by sand and water erosion or impact damage comprising:
- filling said plurality of damage cavities in said elastomeric protective coating with a liquid repair material of elastomeric polyurethane, polyurea or fluoroelastomer having viscosity between a brushable coating up to the viscosity of a flowable caulking compound sufficient to fill said plurality of damage cavities to form filled cavities using a flexible planar applicator capable of conforming to said airfoil surface while being drawn lengthwise along the airfoil surface.
Dependencies are inferred from the claim text.