Abstract: A sampling container apparatus for a remotely operated vehicle (“ROV”) is disclosed. An example sampling container includes a tank configured to hold a sample collected from an underwater environment. The tank includes at least one opening that contains a plunger therein. The plunger includes a contraction or retraction mechanism that pulls the plunger into the tank causing the plunger to actuate from an open position to a closed position. The plunger is retained in the open position by a retainer plate. To enable the plunger to actuate to the closed position, the tank is rotated relative to the retainer plate, causing the plunger to traverse a travel channel in the retainer plate. The travel channel includes a plunger window, which when reached by the plunger, enables the plunger to be pulled through the retainer plate, thereby sealing the opening of the tank and preserving the collected sample.

Abstract: A sampling container apparatus for a remotely operated vehicle (“ROV”) is disclosed. An example sampling container includes a tank configured to hold a sample collected from an underwater environment. The tank includes at least one opening that contains a plunger therein. The plunger includes a contraction or retraction mechanism that pulls the plunger into the tank causing the plunger to actuate from an open position to a closed position. The plunger is retained in the open position by a retainer plate. To enable the plunger to actuate to the closed position, the tank is rotated relative to the retainer plate, causing the plunger to traverse a travel channel in the retainer plate. The travel channel includes a plunger window, which when reached by the plunger, enables the plunger to be pulled through the retainer plate, thereby sealing the opening of the tank and preserving the collected sample.

Abstract: A remotely operated vehicle (“ROV”) camera apparatus is disclosed. An ROV includes an anchor housing connected to a body of the ROV. The anchor housing includes a first magnet. The ROV also includes a camera connection housing configured to be rotatably connected to the anchor housing. The camera connection housing includes a connector cup configured to contact the anchor housing, a second magnet located inside the connector cup, the second magnet configured to magnetically couple to the first magnet, and a motor assembly including a motor configured to rotate a drive shaft, the drive shaft being connected to the magnet plate. The ROV further includes a camera device mechanically coupled to the camera connection housing. Actuation of the motor causes the connector cup to rotate with respect to the anchor housing causing the camera device to rotate.

Abstract: A remotely operated vehicle (“ROV”) camera apparatus is disclosed. An ROV includes an anchor housing connected to a body of the ROV. The anchor housing includes a first magnet. The ROV also includes a camera connection housing configured to be rotatably connected to the anchor housing. The camera connection housing includes a connector cup configured to contact the anchor housing, a second magnet located inside the connector cup, the second magnet configured to magnetically couple to the first magnet, and a motor assembly including a motor configured to rotate a drive shaft, the drive shaft being connected to the magnet plate. The ROV further includes a camera device mechanically coupled to the camera connection housing. Actuation of the motor causes the connector cup to rotate with respect to the anchor housing causing the camera device to rotate.

Abstract: A method of data sharing between processors on the same network utilizes en migration for providing a data locking mechanism. A token migrates between the processors for each original data item and its replicas. Only the processor having possession of the token can perform certain operations such as updating and transmitting this updated information to the other processors. Two different queuing arrangements are described for giving up or retaining possession of the token when a processor, not in possession of the token makes a request for the token.

Abstract: A system for updating and reading a data base utilizes a pair of counters ere one counter is incremented prior to an update and the other is incremented following an update. The system permits the updating to take place at any time. By keeping track of the value of the counters the system either inhibits the reading from taking place during the updating if the updating commenced prior to the commencement of the reading or provides information that an updating occurred during the reading if the reading commenced prior to the commencement of the updating. The counters and data base are located within the RAM of a computer. The system has a first application program that gives information to a second application program via these RAM based components.

Abstract: A system for updating and reading a data base utilizes a pair of counters rking in conjunction with registers located within RAM to enable one upon reading the data base to know if a data base record has been added, deleted, or revised. The system also notifies if the data base is being updated on attempting a read process or during the reading. The updating is performed by a writer that is never inhibited from updating the data base.