US Patent 7147266 Hinged assembly locking system

A hinge locking system comprising: (a) a first component; (b) a second component relating to the first component; (c) at least one hinge system pivotally coupling the first and second components together, such that at least one of the first and second components is rotatable between a starting and ending or an open and closed position; and (d) means for locking the hinge system, wherein the means may be selectively actuated to support the first and second components in one of a plurality of desired positions relative to one another and anywhere within their range of motion. In an exemplary embodiment, means for locking comprises a ratchet system, such as a ratchet clutch that provides one or two-way locking of the hinge system.