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US 10,035,287 B2Granted
Method for sealing a fastener
AssigneeThe Boeing Company
InventorWeidong Song
Life of this patent
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Abstract
A method for sealing a fastener employs a mold which provided with an inlet port for molding material. The mold is then positioned over a fastener and the mold is sealed against a structure. A molding material is then injected into the mold. The mold is then removed to leave an in-situ molded cap formed over the fastener and sealed to the structure.
Claims11
A method for sealing a fastener comprising the steps of:
- providing a mold having an inlet port for molding material;
- positioning the mold over a fastener;
- sealing the mold against a structure;
- injecting a thermoplastic elastomer (TPE) molding material in a plastic state into the mold to fill the mold with any overflow routed through an overflow port, said TPE selected from a set of thermoplastic polyether-ester block copolymers, thermoplastic fluoroelastomers, Polyarylsulphones (PSU) or polyphenylsulfones (PPSU);
- cooling the TPE yielding a preliminary cure without chemical reaction;
- and,
- removing the mold to leave an in-situ formed molded cap over the fastener and sealed to the structure.
4 more elements
Dependencies are inferred from the claim text.