Patent ID: 8668560

Claim:
A fuel dispenser, comprising: a substantially vertical first channel having opposing vertical walls adapted to guide an airflow within the first channel; an airflow inlet arranged substantially horizontal at a first end of the first channel; a fan mounted at a second end of the first channel; a second channel coupled with the fan, the second channel configured to direct airflow originating from a radially interior part of the fan tooward the fuel dispenser component; a third channel coupled with the fan, the third channel configured to direct airflow particulates originating from a radially exterior part of the fan away from the fuel dispenser component; and a plurality of protrusions disposed within the first channel, the plurality of protrusions comprising: a plurality of arrays of angled protrusions substantially parallel in arrangement within each array, the angled protrusions within each array angularly offset in arrangement relative to the angled protrusions within adjacent arrays, the arrays of angled protrusions adapted to form a tortuous path for the airflow through the first channel; and a plurality of substantially vertical protrusions located between the airflow inlet and the plurality of arrays of angled protrusions, the vertical protrusions adapted to substantially straighten the airflow within the first channel.