Abstract: A system for mounting mechanisms comprising modular elements and attachable components, including a male end adapted to join a single-piece female end by rotating the male end into the single-piece female end such that data bus terminals align and power bus terminals align. The system can be assembled from these modular elements and components to meet desired mission and performance characteristics without the need to purchase specially designed systems for each mission. The joints connecting the modules are designed such that power and data connections between modules are reliably made.

Abstract: A system for joining ferry modules comprising modular elements and attachable components, including a male end adapted to join a single-piece female end by rotating the male end into the single-piece female end such that data bus terminals align and power bus terminals align. The system can be assembled from these modular elements and components to meet desired mission and performance characteristics without the need to purchase specially designed systems for each mission. The joints connecting the modules are designed such that power and data connections between modules are reliably made.

Abstract: Disclosed are an automatic stable posture seabed base and a releasing method, belonging to the technical field of ocean observation. The automatic stable posture seabed base includes an accommodating body with an inner cavity for accommodating the first observation device and a seawater, and the accommodating body has first through holes for the seawater to enter and outflow the inner cavity; plugging members blocked at the first through holes to close or semi-close the first through holes; and a buoyancy body installed at a transducer of the first observation device, and a buoyancy of the buoyancy body is larger than a mass of the first observation device, so that the first observation device may float in the cover body after the cover body is filled with water, and a posture of the transducer in the cover body always keeps vertically to the sea surface.

Abstract: The present invention relates to an accessory system simulating the biomechanical motion of manual paddling such as with a canoe or small boat. The system comprises: a watercraft attaching portion having width-adjusting members, an array of levers and members, paddle attaching members, a pedal system, and linkage therebetween, all forming a mechanical structure adapted to simulate the biomechanical motion commonly used by manual-propulsion watercraft operators.

Abstract: An energy conserving moored buoyant ocean profiler wherein an instrument carrying vertically traversing buoyant member of low buoyancy is interconnected with a second buoyant member of high buoyancy to travel in the opposite direction at lesser distance, such that the potential energy of one buoyant member is increased as the potential energy of the other is decreased, thereby conserving energy as the instrument carrying buoyant member is raised and lowered.

Abstract: An improved water flotation release device for locating the submerged position of ships that have sunk. The device comprises an improved release buoy that is self contained and communicating and a releasing system that leads to non-violent and reliable release from the sinking ship.

Abstract: This invention is directed at a buoy which includes a body portion having a handle portion extending from one end and an engagement means extending from the other. The body portion of the buoy may be hollow and may be filled with flotation material. The handle portion may include teeth or annular ribs which are engagable by lock rings. The lock ring for engaging the teeth has an inwardly extending tab and the lock ring for engaging the annular ribs may have biased inner surfaces or inwardly extending tabs. The lock rings hold a second body portion in circumscribing relation to the handle portion.

Abstract: A device for indicating the presence in water of an object consisting of material capable of being affected by a magnet, the device containing a magnet. The device enables a reliable and effective indication to be given of metallic objects which are present in water. The magnet exhibits an active surface capable of interacting with the object in question and a floating body connected to the magnet in such a way as to be capable of being released from it, in conjunction with which there is present at least one ejector protrusion projecting beyond the active surface in question, so arranged that the ejector protrusion will endeavour, because of the nature of the interaction between the ejector protrusion and the object in question, to break the bond between the magnet and the floating body when the magnet is affected by the object in question.

Abstract: The device includes a tubular housing open at one end and closed at the other end by an adhesively attached cup-shaped cap. Within the closed end is a well having a bottom formed with a slot therein. Contained within the well is a water-soluble element, such as an aspirin tablet, which prevents a bobber from being discharged by a slightly compressed coil spring through the open end of the housing. A staple-like tongue on one end of the bobber interferingly engages the aspirin tablet until the tablet becomes dissolved by water entering the housing, as it does when the device is submerged. The bobber has a flange at the inner end from which the tongue projects, whereas the other end of the bobber is flared. Both of these ends are provided with angularly offset notches to facilitate the passage of water through the open end of the housing, through the slot, and into contact with the aspirin tablet.