Patent ID: 8500525

Claim:
An elevator ceiling comprising: a first elevator car panel; a second elevator car panel spaced apart from said first elevator car panel with an intermediate ceiling cavity between said first and second elevator car panels; an inlet duct associated with said first elevator car panel; and an outlet duct associated with said second elevator car panel and not connected to said inlet duct, said inlet and said outlet ducts each extending at least partially into said intermediate ceiling cavity with said outlet duct being horizontally offset from said inlet duct, wherein said intermediate ceiling cavity comprises a ventilation path between said inlet and outlet ducts; wherein said intermediate ceiling cavity includes a plurality of baffles horizontally spaced apart from each other within said intermediate ceiling cavity with at least one baffle being supported by said first elevator car panel and at least one baffle being supported by said second elevator car panel; and wherein said baffles alternate between being supported by said first elevator car panel and said second elevator car panel within said intermediate cavity between said inlet and said outlet duct portions to form a serpentine flow path between said inlet and said outlet openings.