Patent ID: 7203997

Claim:
A hinge comprising: (a) a link having a first end, a second end, two lateral sides, a first projection extending from the first end, a notch in each lateral side, and, near the first end of each lateral side of the link, one of: (i) a pair of parallel pins protruding from each of the opposite sides, wherein the pins are spaced apart from each other by a fixed distance, and the pins protruding from one side are axially aligned with the pins protruding from the other side, and (ii) a pair of non-parallel guide slots; and (b) a first assembly comprising a pair of first side plates, a first end plate having a stop slot, and a tab protruding from each of the pair of first side plates, one first side plate positioned on each lateral side of the link near the first end of the link, and each first side plate having the other of (i) and (ii), such that each pin slidably engages one of the guide slots and the pair of pins can simultaneously slide in their respective guide slots, while remaining the fixed distance apart from each other, wherein, since the guide slots of each pair of guide slots are non-parallel, when one pin is forced to slide in one direction, the other pin of the pair is forced to slide in a different direction, thereby causing the first assembly to both turn and translate with respect to the link, whereby the first assembly is pivotable relative to the link between a first position and a second position, the link and first assembly being further apart in the second position than in the first position, and wherein the first assembly is pivotable, relative to the link, between an extended position and a folded position, with further pivoting of the first assembly beyond the extended position being limited both by abutment of the first projection of the link against the stop slot of the first end plate and by abutment of the notch in each lateral side of the link against the tab of each of the first side plates.