Abstract: Traps, and more particularly collapsible traps used to capture crabs or other live animals. More particularly still, collapsible live animal traps that utilize one or more support members that are stable when assembled, yet easily collapsible.

Abstract: A bulkhead door for watertight closing of a bulkhead opening of a naval vessel, comprising a composite outer shell and inner shell, a chamber therebetween, and a channel along the door margin for retaining a gasket without adhesive. The chamber may be filled with a material such as a rigid foam to increase door strength and rigidity. The outer shell includes hinge blades spaced apart by a standard distance and spaced equally from ends of the door, so that each door may be used for either a right-hand or left-hand bulkhead hinge pin orientation. Metal strikers are bonded to the outer surface of the door for engaging closure dogs in use. A door may be provided without any strikers, and the strikers then bonded to the door at appropriate locations during installation of a door to a specific bulkhead opening location.

Abstract: A latch system for a watertight bulkhead door for closing a bulkhead opening. A plurality of surrounding shield elements are translated by an articulated mechanism into and out of locking engagement with the bulkhead door. A continuous wedged striker along the periphery of the door surface is engaged by wedged surfaces on the shield elements when the shield elements are translated into locking relationship with the door, causing a gasket in the door to be compressed against a collar surrounding the bulkhead opening. The shield elements abut each other in closed position, forming a continuous frame around the door to shield the gasket from fire and to provide a small radar cross-section. Preferably, the exterior shield elements are mounted to a prior art articulated dogging mechanism disposed on the interior of the bulkhead. A plurality of translatable inner bulkhead shields is also provided to cover the articulated mechanism for safety.