Patent ID: 7405934

Claim:
A fan comprising: an impeller rotatable about an axis extending in a first direction; a motor to rotate the impeller; and an integrally molded member, comprising: a housing for supporting the motor, comprising a frame member extending in a second direction perpendicular to the first direction, the frame member having an outer periphery including a first linear side and a second linear side parallel to the first linear side; a first holding arm having a first surface extending in the first direction from the first linear side; a second holding arm having a second surface extending in the first direction from the second linear side, the first surface being parallel to the second surface; a first catch projection extending in the second direction from a first lower end of the first surface toward the second surface; and a second catch projection extending in the second direction from a second lower end of the second surface toward the first surface, the first catch projection being opposed to and parallel to the second catch projection; wherein an imaginary surrounding wall extends to surround the outer periphery, the imaginary surrounding wall being perpendicular to the second direction, wherein the first and second catch projections are located outside the imaginary surrounding wall, and wherein a line extending from the first and second catch projections along the first direction is not blocked by any other portion of the integrally molded member.