US Patent 7198322 Spoiler and method of using the same

A spoiler, comprising a body, the body operable for being connected to a vehicle, an aperture defined by the body, an air flow control member pivotally connected to the body, the air flow control member operable to one of open and close the aperture, and a releasable lock operable for securing the air flow control member one of in a fully open position and in a closed position, a plurality of intermediate positions exist between the fully open position and the closed position, and the releasable lock is operable for securing the member in any of the plurality of intermediate positions.