Abstract: A fishing lure with a spring-loaded, adjustable diving and release apparatus built in to the diving bill that allows the elimination of the diving plane when certain release events occur that would cause a disengagement of the apparatus built into the diving bill. The events that would cause this release to occur would be, but are limited to, 1) the fisherman jerking the line to cause the release in order to retrieve the fishing lure with relative ease while trolling said fishing lure behind a moving boat, 2) a fish strike that would then create a direct line to fish connection, eliminating any pressure points the diving bill might create allowing the fish to work itself free of the hooks, and 3) striking an obstruction on the bottom of the water column that might otherwise cause the fishing lure to snag or entangle in the obstruction.

Abstract: A buoyancy-based lifting system can be dynamically controlled to lift, move, or hold a load an object of arbitrary size at a fixed depth. The control system can control the trajectory of a flexible gas-filled lift bag and attached load by opening or closing inflation and deflation valves based on ambient pressure readings obtained during a lift. Stable control can be achieved and maintained without having to directly measure the actual volume of gas in the lift bag, and without having to accumulate measurements of gas flows into and out of the bag. A controller can pre-determine limits of instability and lift control parameters, then use this information in conjunction with ambient pressure readings to prevent the system from becoming unstable during a lift. User intervention is generally unnecessary to maintain the system's instability.

Abstract: A fishing lure with a spring-loaded, adjustable diving and release apparatus built in to the diving bill that allows the elimination of the diving plane when certain release events occur that would cause a disengagement of the apparatus built into the diving bill. The events that would cause this release to occur would be, but are limited to, 1) the fisherman jerking the line to cause the release in order to retrieve the fishing lure with relative ease while trolling said fishing lure behind a moving boat, 2) a fish strike that would then create a direct line to fish connection, eliminating any pressure points the diving bill might create allowing the fish to work itself free of the hooks, and 3) striking an obstruction on the bottom of the water column that might otherwise cause the fishing lure to snag or entangle in the obstruction.

Abstract: A buoyancy-based lifting system can be dynamically controlled to lift, move, or hold a load an object of arbitrary size at a fixed depth. The control system can control the trajectory of a flexible gas-filled lift bag and attached load by opening or closing inflation and deflation valves based on ambient pressure readings obtained during a lift. Stable control can be achieved and maintained without having to directly measure the actual volume of gas in the lift bag, and without having to accumulate measurements of gas flows into and out of the bag. A controller can pre-determine limits of instability and lift control parameters, then use this information in conjunction with ambient pressure readings to prevent the system from becoming unstable during a lift. User intervention is generally unnecessary to maintain the system's instability.

Abstract: A polysaccharide polymer is disclosed which is a better viscosifier of water than xanthan gum. The polysaccharide polymer and its non-acetylated form, are comprised of glucose and mannose moieties in a ratio of about 2:1. The invention also discloses Xanthomonas mutants which produce the polysaccharide polymer but which do not produce xanthan gum. Methods of preparing the polysaccharide polymers and of their use are also described.