| CPC F04D 29/703 (2013.01) [F04D 19/002 (2013.01); F04D 29/644 (2013.01)] | 20 Claims |

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1. An apparatus comprising:
a grill configured to be attached to a fan body;
a first mount provided on a first face of the grill and including a first notch oriented in a first direction; and
a plurality of pins provided on a second face of the grill, the plurality of pins including a first subset of pins, each pin in the first subset having a substantially straight section, the substantially straight section comprising a first plurality of cross-sections, each of the first plurality of cross-sections having a center such that the first plurality of cross-section centers define a first centerline of symmetry and a curved section comprising a second plurality of cross-sections, each of the second plurality of cross-sections having a center such that the second plurality of cross-section centers define a second centerline of symmetry having a curvature, wherein a first component of the curvature bends away from the first centerline in a direction away from the first direction, and wherein the plurality of pins are configured to be received within a corresponding plurality of parallel holes in the fan body.
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