Patent ID: 7794019

Claim:
A link assembly comprising: four links, each said link having a first linear edge for defining a first axis and a second linear edge for defining a second axis, said edges being disposed adjacent to each other; wherein said first and second axes do not intersect one another; wherein each link is pivotally connected to two other links with the first edge that defines the first axis of one of said links being foldably hinged to the first edge that defines the first axis of one connected link in order to provide a first fold line running along said first axis and the second edge that defines the second axis of said one of said links being foldably hinged to the second edge that defines the second axis of the other connected link in order to provide a second fold line running along said second axis; wherein said first and second fold lines do not intersect one another and are on different planes; and wherein said link assembly is transformable from a fully unfolded condition to a fully folded condition.