Abstract: A manifold system for supplying water to two or more consumer devices on a marine vessel having a primary consumer and one or more secondary consumers has a primary conduit connectable to the primary consumer, the conduit having an interior cross-sectional area determined by water requirements of the primary consumer. A manifold has a threaded inlet fitting, a primary outlet fitting dimensioned to be connectable to the conduit, and a plurality of secondary outlet fittings connectable to secondary conduits for secondary consumers. The inlet and secondary outlet fittings of the manifold have cross-sectional areas determined by dimensions of the primary outlet fitting. A strainer has an inlet connected to a through-hull fitting for receiving and straining incoming raw water and an outlet having a threaded connector for attachment to the manifold inlet fitting, the strainer having a flow capacity determined by the diameter of the strainer outlet.

Abstract: A scoop strainer has a rim to attach the strainer to an outer surface of a hull of a marine vessel over a through-hull fitting intended to admit water to the interior of the hull. The strainer has small openings therethrough to pass water but not large undesired objects or marine life, and a larger opening to permit access to the interior of the strainer and to the through-hull fitting to clean out marine growth and the like. A cover is hinged to the strainer and is movable between an open, access position and a closed position. A threaded fastener passing through the cover threads into the rim to selectively hold the access cover closed.

Abstract: A drip control marine fitting for passage of liquid through an opening in the hull of a marine vessel has a hollow tube extending through an opening through the hull, a flange attached to the tube and an opening through the flange to allow flow of fluid out of the vessel. The flange has a first surface abutting the outer surface of the hull and a second surface facing away from the outer surface of the hull. The first surface of the flange has a smaller surface area than the second surface of said flange. A diagonal surface interconnects the first and second surfaces, the lower part of the diagonal surface extending outwardly and downwardly from the first surface to the second surface to inhibit flow of liquid from the passage to the outer surface of the hull.

Abstract: A training grenade uses a high intensity flash to simulate an explosion in a time delayed fashion when thrown and/or a sonic device such as a buzzer for indicating arming. Alternative means to simulate the explosion can include sonic devices or radio frequency sources. An internal power source and firing circuit connected to an internal timer control the activation of the indicator or flash upon closure of an externally controllable switch. The switch can be locked in an open position through the use of a release pin which closes upon removal of the pin or can be held open through the use of a pivotally attached safety lever as used in conventional grenades.

Abstract: A training device substantially identical in size and shape to the Claymore antipersonnel mine that cooperates with the existing MILES (Multiple Integrated Laser Engagement Set) system. The training device includes a directional acoustic signal that approximates the effectiveness range of the actual Claymore mine.