Patent ID: 7832448

Claim:
A press stack structure for a press for pressing multilayer composites for insertion into an insertion opening of the press, comprising: three electrically heatable tools and first and second multilayer press stacks; said tools forming heating units each having at least one electrically operable, flat heating element, said tools including: a first tool disposed substantially centrally within the press stack structure, said first tool being formed with two heat transfer plates and said heating element arranged between said two heat transfer plates; a second tool disposed on top of said first multilayer press stack and a third tool disposed below said second multilayer press stack, said second and third tools forming terminal elements of the press stack structure; each of said second and third tools having a cover plate, a heat transfer plate, and said heating element disposed therebetween, said cover plates being steel plates and said heat transfer plates being composite material plates; said first tool forming a cohesive unit with said heating element arranged between said two heat transfer plates, and said second and third tools each forming a cohesive unit with said heating element arranged between said cover plate and said heat transfer plate; and said tools each having at least one electric connecting terminal configured to correspond to contact terminals on the press.