Patent ID: 11892035
Assignee: HAMILTON SUNDSTRAND CORPORATION
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A composite/metal joint comprising:
a composite member having a first aperture;
a metallic member disposed adjacent to the composite member, the metallic member having a second aperture coaxially aligned with the first aperture;
a cylindrical liner extending longitudinally from a first end to a second end with a uniform outermost diameter, the cylindrical liner having a cylindrical outer liner surface and a longitudinally extending third aperture coaxial with the first and second apertures and defined by an inner liner surface, the cylindrical liner disposed in the first and second apertures with the outer liner surface adjacent to aperture walls of the first and second apertures, wherein the cylindrical liner has a plurality of grooves intersecting the outer liner surface, the plurality of grooves arranged in a location aligned with a through-thickness boundary of at least one of the composite member and the metallic member, wherein grooves of the plurality of grooves are circumferentially spaced about the outer liner surface and separated from adjacent grooves; and
a fastener disposed through the third aperture of the cylindrical liner and configured to attach the metallic member to the composite member, wherein an outer surface of the fastener is in direct contact with the inner liner surface.