Patent ID: 6855450

Claim:
A frame member for an electrochemical cell stack, comprising: an outer periphery; an inner periphery; a surface defined between said outer periphery and said inner periphery; a fluid port defined axially through said surface, said fluid port having a length along said inner and said outer peripheries; a plurality of fluid manifolds defined in said surface, each of said plurality of fluid manifolds defining a fluid flow channel between said fluid port and said inner periphery, and at least one of said plurality of fluid manifolds extending along said inner periphery a distance beyond said length of said fluid port; and a gap defined in said inner periphery, said gap being radially offset along said inner periphery in a first direction from said fluid port, said gap being in fluid communication with said inner periphery, said at least one of said plurality of fluid manifolds defining a fluid flow channel between said fluid port and said gap.