The seal between the sides of a fuel cell stack and the gas manifolds is improved by adding a mechanical interlock between the adhesive sealing strip and the abutting surface of the manifolds. The adhesive is a material which can flow to some extent when under compression, and the mechanical interlock...http://www.google.co.uk/patents/US4738905?utm_source=gb-gplus-sharePatent US4738905 - Manifold seal structure for fuel cell stack
