An inline for an inflatable assembly may comprise a first end defining a primary gas inlet and a second end defining a primary gas outlet. An internal surface may define a flow path extending from the primary gas inlet to the primary gas outlet. An orifice may be located between the first end and the second end. The orifice may be defined, at least partially, by a radial wall extending from the internal surface to the external surface. The orifice may be configured to entrain ambient air with a primary gas flowing from the primary gas inlet to the primary gas outlet.

In a rescue network system for a watercraft, a transmitter transmits a first distress signal of the watercraft to which it belongs. A receiver receives a second distress signal from another watercraft. An output outputs emergency information indicating the existence of the second distress signal from the another watercraft. A controller is configured or programmed to control the output to output the emergency information when the receiver has received the second distress signal from the another watercraft.

A wearable personal flotation device may be configured for wear under a parachute harness and may comprise a rear section and a pair of side sections that extend forward from lower sides of the rear section. A bladder may be contained in the rear and side sections and, when inflated, may expand through release gaps in fronts of the side sections. The rear section may include a panel of closed cell foam.

A wearable personal flotation device may be configured for wear under a parachute harness and may comprise a rear section and a pair of side sections that extend forward from lower sides of the rear section. A bladder may be contained in the rear and side sections and, when inflated, may expand through release gaps in fronts of the side sections. The rear section may include a panel of closed cell foam.

A method of verifying a triggered alert in a man overboard detection system comprises: receiving (600) a plurality of sequential frames of image data associated with the triggered alert followed by motion compensating (616) difference frames formed by generating differences (608) between successive frames. A summation of the motion compensated difference frames is then generated (618). The summation image is then analysed (630, 632) and the detection associated therewith is classified (634, 636) in response to identification of a cluster of pixels corresponding to a predetermined size range.

An aspirator includes a duct having a wall with a surface bounding a converging portion and a diverging portion of the duct. The converging portion of the duct has an inlet and the diverging portion of the duct has an outlet, the inlet being in fluid communication with the outlet through the converging portion and the diverging portion of the duct. The surface of the duct wall includes a conformal surface portion extending between the inlet of the duct and the outlet of the duct that is conformal with an aspirator seat surface portion of a support structure to conform the duct to the support structure. Evacuation assemblies are also described.

A wearable personal flotation device may be configured for wear under a parachute harness and may comprise a rear section and a pair of side sections that extend forward from lower sides of the rear section. A bladder may be contained in the rear and side sections and, when inflated, may expand through release gaps in fronts of the side sections. The rear section may include a panel of closed cell foam.

A water safety rope and alarm system, comprising a rope mounted adjacent to a waterline of a marine or aquatic structure; a switch connected to the rope and configured to be triggered when the rope is tensioned; and an alarm connected to the switch and configured to produce an alarm signal when the switch is triggered.

A water safety rope and alarm system, comprising a rope mounted adjacent to a waterline of a marine or aquatic structure; a switch connected to the rope and configured to be triggered when the rope is tensioned; and an alarm connected to the switch and configured to produce an alarm signal when the switch is triggered.

A connector includes a male, key-like member that is operably received in a female connector body. The key-like member includes a stem for operative association with a cord or other body and a distal element. The female connector has a body defining a proximal portion for operative association with a cord or other body and a slot extending along a surface of the body to an aperture for receiving a distal element of a first connector element. A first inside channel extends from the slot at a distal end of the connector to a depth from the surface of the slot. A second inside channel extends from the aperture to the first channel. One of the first and second connectors is provided with a sensor. The sensor indicates that the first connector element is located at the distal portion of the inside channel.