US Patent 10227023 Energy absorbing brackets for passenger seats

Seat assemblies including seat brackets and spreader brackets are described. A seat bracket can include an upper portion, a lower portion, and a frangible portion. The frangible portion can be formed from composite material and include a particular layer orientation. A spreader bracket can include a first component configured to couple with a second component to form a coupled structure. A structural fill material can be disposed within the coupled structure. The first component and the second component can be formed from composite material.