CAP WITH CHANNELS FOR FORMING A SEALED CAVITY AROUND FASTENER

摘要

A cap for forming a sealed cavity around one end of a fastener, the cap having a two-piece construction comprising an outer cap member and an inner cap member. A quantity of sealant is provided between the inner and outer cap members which, upon installation of the cap, is urged to flow between the inner and outer cap members and collect at the base of the outer cap member, to form a bead of sealant around the circumference of the cap, sufficient to adhere the cap to the structure when the sealant cures. A plurality of channels are provided between the inner and outer cap members to facilitate the flow of sealant.

主权项

1. A cap for forming a sealed cavity around one end of a fastener, the cap comprising an inner cap member with a base terminating at an edge which surrounds an opening into a central cavity; an outer cap member which fits over the inner cap member and has a base; and a sealant material between the inner cap member and the outer cap member, wherein either: the inner cap member has side walls with a substantially uniform wall thickness and a plurality of channels formed in an outer surface of the inner cap member and a plurality of corresponding ridges formed in an inner surface of the inner cap member, the channels and the ridges extending longitudinally along a substantial portion of the inner cap member; or the outer cap member has side walls with a substantially uniform wall thickness and a plurality of channels formed in an inner surface of the outer cap member and a corresponding plurality of ridges formed in an outer surface of the outer cap member, the channels and the ridges extending longitudinally along a substantial portion of the outer cap member.