Patent ID: 8075046

Claim:
An air dam for a truck-trailer, comprising: a) a truck; b) a trailer coupled to said truck, wherein said truck coupled to said trailer defines an open space between said truck and said trailer having a first side access and a second side access at opposed sides of said open space; and c) a pair of air dam panels mounted in each of said first side access and said second side access, wherein a first one of said pair of air dam panels has a first edge and a second edge, said first edge pivotally coupled in relation to said external surface of said truck, said second edge pivotally coupled to a first edge of a second one of said pair of air dam panels, whereby said first one of said pair of air dam panels and said second one of said pair of air dam panels pivotally fold inwardly to dispose a pair of panel surfaces in opposed relation within said open space to open the corresponding said first side access or said second side access and said pair of air dam panels pivotally unfold outwardly to close the corresponding said first side access or said second side access of said open space.