US Patent 7673749 Folding photo case

A folding photo case includes a pair of exterior case members coupled to each other by a first hinge and a pair of interior frame members coupled to respective exterior case members by respective second and third hinges. The first, second and third hinges are preferably torsion bar hinges with the first hinge biasing the exterior case members to an open position and the second and third springs biasing the interior frame members toward interior surfaces of the exterior case members. One or both of the exterior case members are preferably provided with a latch structure which allows the folding case to be latched in a closed position. The dimensions of the folding case are preferably such that the case can be carried in a pocket or purse when it is folded into the closed position.