Patent ID: 7985279

Claim:
A gas separator comprising: a pleat element including a pleat molding and a reinforcement frame, the pleat molding being formed by pleating a composite membrane base material formed of a gas separation membrane and at least one layer of breathable reinforcement material, the reinforcement frame being placed on the outer periphery of the pleat molding; and an upper surface and a lower surface of the pleat element being covered with a plate having at least one set of an intake port and an exhaust port; wherein a ratio (R=L/H) of the shortest length (L) between the intake port and the exhaust port to a height (H) of the pleat element ranges from 0.1 to 7.0, and wherein an average pitch representing an average distance between adjacent peaks of the pleat molding is defined as (P), a ratio (M) of the average pitch (P) to a thickness (T) of the composite membrane base material is 0.5 to 3.0.