초록 ▼

A laminate bulkhead comprises an expandable polymer sandwiched between two stiff members which are of a structure so that the expandable polymer is flared out or thicker in the area or along the line where the polymer expands and is bonded to the walls of a hollow structure in which the bulkhead is

A laminate bulkhead comprises an expandable polymer sandwiched between two stiff members which are of a structure so that the expandable polymer is flared out or thicker in the area or along the line where the polymer expands and is bonded to the walls of a hollow structure in which the bulkhead is placed. The direction of expansion of the polymer results from the polymer being constrained by the stiff members on either side of the expanding polymer.

대표청구항 ▼

[ What is claimed is:] [8.] A laminate bulkhead comprising a stiff base member, a stiff cover member mounted over and spaced from said base member, one of said members having said edges flared outwardly away from the other of said members, each of said members having a central portion, said members

[ What is claimed is:] [8.] A laminate bulkhead comprising a stiff base member, a stiff cover member mounted over and spaced from said base member, one of said members having said edges flared outwardly away from the other of said members, each of said members having a central portion, said members being located closer to each other at said central portions than at said flared edges, a structural reinforcement foam located between and bonded to said base member and said cover member, said structural reinforcement foam being formed from an expandable polymer, said members constraining the direction of expansion of said expandable polymer whereby said structural reinforcement foam is thicker at said flared ends than at said central portions, said base member and said cover member terminating in said edges which are coplanar with each other on both sides of said central portions, the spacing between said central portions being uniform, said base member and said cover member being inter-locked to maintain the spacing between them fixed, said one of said members has said end edges flared outwardly on each side of said central portion, and one of said members includes a tab which fits into a slot in the other of said members to interlock said members together.