Abstract: An apparatus, system and method including a latching device for displaceably retaining a panel relative to a frame. The latching device includes at least a bolt which is carried on the latching device and is operatively associated with the panel to prevent disengagement of the panel. The latching device includes at least one pressure responsive device operatively coupled to the bolt to retain the bolt in a desired position and release the bolt when a predetermined pressure differential occurs relative to two, generally opposite, sides of the panel or when a pressure decrease occurs on one side of the panel.

Abstract: A latch mechanism for releasably securing a first structure to a second structure. The latch mechanism includes a housing adapted to be attached to the first structure and an actuator pivotally attached to the housing. Selective pivotal movement of the actuator pivots a bolt member between a latched position and an unlatched position. The latch mechanism is sealed to prevent the flow of fluid through the latch mechanism.