Method for sealing a fastener
First Claim
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1. 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.
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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.
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Citations
11 Claims
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1. A method for sealing a fastener comprising the steps of:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification