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US 6,385,836 B1Granted
Method for composite material repair
AssigneeLockheed Martin Corporation
InventorDavid H. Coltrin
Life of this patent
Estimating the term…
Abstract
A method for repairing a composite material having an internal void includes identifying the location of the internal void and forming a single channel extending from a surface of the composite material to the internal void. The method further includes pulling a vacuum in the internal void and inserting a repair material through the channel into the internal void.
Claims12
A method for repairing a composite material having a hidden internal void, comprising:
- locating the hidden internal void;
- forming a single channel extending from a surface of the composite material to the hidden internal void;
- pulling a vacuum in the internal void through the single channel;
- and
- inserting a repair material through the channel into the internal void.
2 more elements
A method for repairing a composite material having a hidden internal void, comprising:
- identifying the location of the hidden internal void;
- forming a single channel extending from a surface of the composite material to the internal void;
- positioning a vacuum bag over the channel;
- forming a seal between the vacuum bag and the surface of the composite material;
- drawing a vacuum in the internal void through the channel;
- and
- inserting a repair material through the channel into the hidden internal void.
4 more elements
A method for repairing a composite material having a hidden internal void, comprising:
- scanning the composite material to locate the hidden internal void;
- forming a single channel extending from a surface of the composite material to the hidden internal void;
- cleaning the channel to remove loose materials;
- positioning a vacuum bag over the channel;
- forming a seal between the vacuum bag and the surface of the composite material;
- drawing a vacuum in the internal void through the channel;
- and
- injecting a repair material through the vacuum bag and the channel into the hidden internal void.
5 more elements
Dependencies are inferred from the claim text.