Patent ID: 7575034

Claim:
In a manufactured wood products press of the type having a plurality of frames, at least one of the plurality of frames having first and second frame members, a lock assembly comprising: (a) a housing; (b) a pin assembly comprising: a first pin; and a second pin, the second pin being in fluid communication with the first pin for synchronous actuation with the first pin; the pin assembly being disposed within the housing and selectively actuable between a locked positions where a first pin is displaced into engagement with a portion of the first and second frame members, and an unlocked positions (c) an extension assembly in fluid communication with the first pin to selectively actuate the first pin into the locked position; (d) a retraction assembly in fluid communication with the first pin to selectively actuate the first pin into the unlocked position; wherein the first and second pins are moved to the locked position by the extension assembly which selectively expands a first cavity within each of the first and second pin assemblies; and wherein the first and second pins are moved to the unlocked position by the retraction assembly which reverses flow to expand a second cavity within each of the first and second pin assemblies.