Abstract:
A substantially hollow wingsail is configured to enable electrical components to be situated within the wingsail. In particular, the wingsail may be configured to contain the solar panels used to power the other electrical components of the vessel, as well as other items that are conventionally situated on the exterior of the vessel, such as antennas, navigation lights, and so on. The surface of the wingsail may include transparent or translucent areas to provide light to the solar panels, as well as optical and electromagnetic reflective areas within the wingsail to enhance the performance of the solar panels and antennas. The wingsail may also include an internal light that illuminates the translucent areas of the wingsail for enhanced visibility to other vessels.
Abstract:
A method of locating an underwater based system, the method including determining the underwater based system's geo-location, encoding the underwater based system's geo-location for RF transmission, encoding the underwater based system's geo-location for acoustic transmission, and transmitting RF and acoustic signals containing the encoded geo-location to a receiving station. A locator for locating an underwater based system including a buoy, a global positioning system having an antenna and a receiver, an RF transmission system including an antenna and a transmitter, an underwater acoustic transducer, and a locator control unit adapted to determine the underwater based system's geo-location, encode the underwater based system's geo-location for RF transmission, encode the underwater based system's geo-location for acoustic transmission, and transmit RF and underwater acoustic signals containing the encoded geo-location.
Abstract:
A visual device placed on a water ski that enables easy detection of the ski in various water and weather conditions. A reflective red flag attaches to a flexible spring that is attached to a rotator. A second spring attached to the rotator is connected to a counterweight to balance the flag. The rotator is rotatably coupled to a bracket that attaches to a water ski. In use, the device bends out of the way as to not interfere with the performance of the water ski. When the ski is not in motion, gravity causes the counterweight to move the flag to an upright position to allow visual detection of the ski.
Abstract:
The present invention provides apparatuses and methods for alleviating impact of underwater pressure upon submersible devices and emitters. An interior space of the casing of a submersible device may be filled up with fluid to reduce the impact of underwater pressure. The submersible device may further comprise a pressure adjusting bladder attached to the casing through a structure that permits flow of fluid from the casing into the bladder. The bladder may enable the device to cope with varying degrees of fluid expansion due to changes in surrounding pressure or temperature. The submersible device may also comprise a special type of fluid and specially designed internal components so that the presence and flow of the fluid within the device do not affect the performance of the components.
Abstract:
There is described an instrumentation buoy having an elongated vertical spar, the upper end of which has a collar to which is tied by a group of slack flexible lines, an annular float which surrounds the upper end of the spar. The flexible attachment between the float and the spar isolates pitch and roll motions of the float from the spar while providing coupling to vertical heave.
Abstract:
An active base-tracking multi-antenna system and an active base-tracking antenna system for a vessel and an offshore structure are provided. The active base-tracking multi-antenna system may include: a fixing shaft fixed to a fixture on a vessel or an offshore structure; a gimbal unit disposed on a top of the fixing shaft and keep positions of a panning motor and antennas; the panning motor disposed on the gimbal unit and simultaneously rotating the antennas in a left-right direction; and the antennas connected to the panning motor. Therefore, it is possible to always keep the antennas in a stable horizontal position and greatly improve communication quality by adjusting the azimuths and vertical angles of the antennas in real time to an optimal state for communication with a base station.
Abstract:
Embodiments of the invention provide a water safety device used to increase participant visibility by passing water craft. The device is worn by the participant on his or her wrist and activated upon need at which time a flag is uncoiled and extended above the water. Upon conclusion of the need for visibility, the flag is replaced around the participant's wrist and ready for the next use.
Abstract:
A signaling device for enhancing the visibility of the wearer of the device. A flexible coilable resilient rod is provided with a flag. The rod is designed to be coilable or collapsible into a compact configuration and stored within and confined by a container. The container is provided with a quick opening closure which permits release of pressure on the rod, allowing the rod to spring into an erect position.
Abstract:
A dive buoy/dry box assembly comprising a hollow canister-like main float assembly having a hinged latchable air-tight sealing lid, a collapsible marker flat and mast removably attached to the lid, a collapsible staff and ballast weight removably attached to the bottom of the float assembly and a buoy line storage reel detachably mounted surrounding the float assembly in a horizontal plane, the marker flat, mast ballast weight and staff all storable in said float assembly when collapsed.
Abstract:
A flag-type signaling device for indicating the position of and enhance the visibility of the wearer, particularly while afloat in water. The device includes a first member defined, in one embodiment, by a flotation vest to be worn about the torso of a user, and a second member attached to or made as an integral part of the first member and cooperating therewith to form therebetween an interior region, a third member defined by a wedge-shaped element disposed within the interior region, and a visibility enhancing member extending downwardly within the interior region bearing against the wedge-shaped element such that the upper portion of the visibility enhancing member extends upwardly and divergingly rearwardly away from the rear of the user's head to reduce or prevent the potential of the visibility enhancing member striking the back or rear of the user's head while the device is worn by the user.