Patent ID: 7128303

Claim:
A spacer configured to mount a fan housing to a surface of a structural support, the spacer comprising: a body; a first aperture passing through the body, the first aperture having a first length through the body; a second aperture passing through the body, the second aperture having a second length through the body, the second length different than the first length; and a third aperture passing through the body, the third aperture having a third length through the body, the third length different than the first length and the second length; wherein the body has a first orientation with respect to the fan housing and structural support in which the body separates the fan housing from the surface of the structural support by the first length when installed with a fastener passed through the first aperture and into the structural support; wherein the body has a second orientation with respect to the fan housing and structural support in which the body separates the fan housing from the surface of the structural support by the second length when installed with a fastener passed through the second aperture and into the structural support; and wherein the body has a third orientation with respect to the fan housing and structural support in which the body separates the fan housing from the surface of the structural support by the third length when installed with a fastener passed through the third aperture and into the structural support.