| 摘要 |
In an air blower of the type including a housing having an air inlet and a motor and a fan positioned in the housing, there is disclosed an improvement wherein the housing has first and second outlets and a pivotable plate for selectively sealing either of the outlets so that a single blower can be used to drive two different air flow systems. The housing also has a mechanical device for controlling the rate of air flow into the outlets.
|
