An inflation fluid supply and discharge assembly includes a combined two-way inlet and outlet valve having a valve body with two separate flow paths separated for flows in opposite directions. Each flow path is associated with a valve seat with a shutter, which cooperates with the valve seat in the manner of a non-return valve. One of the flow paths, intended for the passage of an incoming flow to a collection body, can be connected to a fluid supply source, the other flow path enabling the passage of a discharge flow from the collection body. A shutter is stably stressed against the corresponding valve seat, in a position of interdiction of the discharge or outlet flow, and is moved to a position at a distance from the valve seat by control members or automatically by a predetermined overpressure condition of the fluid in the collection body.

The diver's floating marker assembly is a marker buoy. The diver's floating marker assembly is configured for use in water. The diver's floating marker assembly is a safety device that marks an area in the water where one or more divers are operating. The diver's floating marker assembly is comprises a marker structure, a reel structure, and a tether. The tether attaches to the marker structure. The marker structure is a buoyant structure that visibly marks the area in the water where one or more divers are operating. The reel structure stores, pays out, and retracts the tether. The tether is paid out and retracted by the one or more divers while underneath the water. The use of the reel structure allows the position of the marker structure to be set by the one or more divers while underneath the water.

The present invention relates to an automatic falling-off device for a self-sinking and floating type profiling float diversion shell and the diversion shell. An automatic falling-off device for a self-sinking and floating type profiling float diversion shell, comprises a locking device and an unhooking device; the locking device comprises a locking hook plate and a locking core plate; the locking hook plate is provided on one half diversion shell, and the locking core plate is fixed on another half diversion shell; a locking hook at a front end of the locking hook plate fits with a locking ring at a front end of the locking core plate for locking; the unhooking device comprises a base and a buoyancy airbag; and the base is provided below the locking hook plate, and the buoyancy airbag is mounted between the base and the locking hook plate.

The present invention relates to an automatic falling-off device for a self-sinking and floating type profiling float diversion shell and the diversion shell. An automatic falling-off device for a self-sinking and floating type profiling float diversion shell, comprises a locking device and an unhooking device; the locking device comprises a locking hook plate and a locking core plate; the locking hook plate is provided on one half diversion shell, and the locking core plate is fixed on another half diversion shell; a locking hook at a front end of the locking hook plate fits with a locking ring at a front end of the locking core plate for locking; the unhooking device comprises a base and a buoyancy airbag; and the base is provided below the locking hook plate, and the buoyancy airbag is mounted between the base and the locking hook plate.

An underwater object retrieval device for selective deployment to retrieve underwater objects includes an inflation unit that is configured to inflate upon command. A coupler is configured for coupling to an object to be placed underwater. A tether line has a first end, which is coupled to the inflation unit, and a second end, which is coupled to the coupler. A line storage unit is coupled to the tether line proximate to the second end. The line storage unit is positioned to house the tether line, such that the tether line is extensible from the line storage unit. The inflation unit is positioned to inflate upon user directed command, such that the inflation unit is buoyant. The tether line is extended from the line storage unit, such that the inflation unit reaches the water surface. The tether line is configured for retrieving the object to the surface.

A vessel mounted multi-directional signal assembly includes a multi-directional signal display assembly comprising a plurality of signal display panels. Each of the plurality of signal display panels comprising at least one display surface, and a plurality of signal indicia are affixed onto different ones of each of the plurality of display surfaces. A signal support assembly is provided such that the multi-directional signal display assembly is disposable into a deployed orientation about the signal support member. A vessel mount assembly is operatively interconnected to the signal support assembly and comprises a mount member to facilitate deployment of the multi-directional signal display assembly on the vessel.

A vertical marker buoy and method for deployment are disclosed herein for enhanced detection of equipment on the water's surface. The equipment may have been previously submerged at a significant depth. The buoy and method provide a faster and more reliable means to locate equipment, e. g., at the sea surface or suspended by a float. The marker buoy has flotation device, a detection indicator and a bail mounted to a tube. The marker buoy is configured to be positioned in a substantially vertical position when the vertical marker buoy is in use on the surface of a body of water. The vertical marker buoy is capable of being deployed at an underwater depth.

A vertical marker buoy and method for deployment are disclosed herein for enhanced detection of equipment on the water's surface. The equipment may have been previously submerged at a significant depth. The buoy and method provide a faster and more reliable means to locate equipment, e. g., at the sea surface or suspended by a float. The marker buoy has flotation device, a detection indicator and a bail mounted to a tube. The marker buoy is configured to be positioned in a substantially vertical position when the vertical marker buoy is in use on the surface of a body of water. The vertical marker buoy is capable of being deployed at an underwater depth.

A technique for managing an attachment between first and second portions of a device. The technique includes a retaining component having a first state in which the retaining component maintains the attachment between the first and second portions by virtue of a rigid characteristic and a second state in which the retaining component loses the rigid characteristic and no longer maintains the attachment. The retaining component transitions from the first state to the second state upon exposure to liquid water.

A technique for managing an attachment between first and second portions of a device. The technique includes a retaining component having a first state in which the retaining component maintains the attachment between the first and second portions by virtue of a rigid characteristic and a second state in which the retaining component loses the rigid characteristic and no longer maintains the attachment. The retaining component transitions from the first state to the second state upon exposure to liquid water.