Patent ID: 11883983
Assignee: THE BOEING COMPANY
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 18:
19. A system for mixing parts of a thermoset resin during impregnation of a composite preform, the system comprising:
a forming tool comprising:
a mandrel defining a shape for the composite preform;
a first storage well that stores a first part of the thermoset resin;
a second storage well that stores a second part of the thermoset resin which is chemically distinct from the first part of the thermoset resin;
a mixing chamber;
a first channel leading from the first storage well to the mixing chamber;
a second channel leading from the second storage well to the mixing chamber, wherein the composite preform is spaced from the first storage well and the second storage well by the first channel and the second channel and by a third channel leading from the mixing chamber to the composite preform;
a vacuum bag positioned atop the first storage well, the second storage well, the mixing chamber, and the composite preform;
a first cover plate sealed on the vacuum bag over the first storage well;
a second cover plate sealed on the vacuum bag over the second storage well; and
a mixer plate sealed on the vacuum bag over the mixing chamber.