Abstract: A safety system for underwater propulsion devices operated by scuba divers includes sensors that detect the vertical velocity of the device. If the descent or ascent is greater than 60 feet per minute, the system reduces the vertical speed by changing the pitch of the device or reducing the speed of the device. By regulating the vertical speed, the device can be used safely with less chance of injury to the scuba diver due to rapid compression or decompression.

Abstract: A safety system for underwater propulsion devices operated by scuba divers includes sensors that detect the vertical velocity of the device. If the descent or ascent is greater than 60 feet per minute, the system reduces the vertical speed by changing the pitch of the device or reducing the speed of the device. By regulating the vertical speed, the device can be used safely with less chance of injury to the scuba diver due to rapid compression or decompression.

Abstract: The present invention provides a powered aiming platform for pointing devices such as firearms, illumination devices, or sensing instruments, remotely controlled by a hand-controller device, with video feedback of the aiming position and audio feedback of the exact direction and speed of positioning movements. The present invention overcomes the safety and accuracy limitations of manual and conventional remotely-controlled aiming mechanisms, thereby allowing operators to point devices accurately and quickly with predictable, precise control. In the case of firearms, the present invention maintains a steady position after repeated firing.

Abstract: A winged submersible having a neutral to positive buoyancy utilizes an inverted wing structure to allow the wings to create downward force on the submersible in response to forward movement. Internal pressure pods are provided to allow an occupant to maintain a recumbent sitting position. The pressure pods are maintained at a constant pressure with life support systems, while the remainder of the hull is not pressurized. Acrylic domes are positioned to allow access to each internal pressure pod and when closed, the occupant's head is positioned within the center of the dome for optimal optics under water. Wings with adjustable control surfaces provide the submersible with the ability to roll about a longitudinal axis 0–360 degrees in either direction.

Abstract: A system used in a remotely controlled firearm device includes a circular gear and two worm gears. The worm gears engage the outer diameter of the circular gear and rotate synchronously to rotate the circular gear to align the firearm device with a target. Once the firearm device is aligned, the circular gear is locked into a fixed position that does not have any hysteresis by rotating the two worm gears asynchronously.

Abstract: The present invention provides a powered aiming platform for pointing devices such as firearms, illumination devices, or sensing instruments, remotely controlled by a hand-controller device, with video feedback of the aiming position and audio feedback of the exact direction and speed of positioning movements. The present invention overcomes the safety and accuracy limitations of manual and conventional remotely-controlled aiming mechanisms, thereby allowing operators to point devices accurately and quickly with predictable, precise control. In the case of firearms, the present invention maintains a steady position after repeated firing.