Patent ID: 7703835

Claim:
A secondary delivery door system for mounting on a vehicle or trailer having a storage compartment; said secondary delivery door system comprising: a first door mounted to a wall of the vehicle or trailer, said wall having a first entry therein and said first door adapted to open and close said first entry to said storage compartment; a secondary door mounted to said wall in opposed relationship to said first door and also adapted to open and close said first entry to said storage compartment, said secondary door comprising a body member; at least one fastener for moveably attaching a body member to said wall of said vehicle or trailer in operative relationship with said first door; said at least one fastener comprising a closer coupled to said body member for automatically driving said body member from a closed position to an open position during which said user may pass by both said first door and said secondary door and through said first entry either into or out of said storage compartment and from said open position to said closed position when said first door is open and said user is not passing through said first entry; thereby maintaining a temperature in said storage compartment within a predetermined temperature range.