Abstract: A portable lifting device is provided that includes a pair of telescoping parallel beam assemblies attached on either end to a pair of stanchion assemblies. Each stanchion assembly includes a top and bottom member as well as at least one vertical member. The bottom member of each beam assembly rests on a deck support member, and the height of each vertical member may be adjustable. A sliding guide assembly is slidably mounted on the parallel beam assemblies and includes a cross-member between the parallel beams that acts as the connection point for a lifting medium. This allows for a higher support point for the lifting medium than would be provided by a conventional single-beam device.

Abstract: Circuit breaker lockout devices are disclosed that effectively lock one or more circuit breakers in a circuit breaker panel in a safe or open circuit position. Embodiments of the circuit breaker lockout devices are robust, utilize few loose parts, and are easily installed. The devices are also short in profile, thereby allowing them to be installed in a circuit breaker panel having minimal clearance between the circuit breakers and a closed panel door cover.

Abstract: An apparatus for extracting wave energy may include a watercraft, a pendulum and an energy converter. The watercraft may be configured to roll in response to wave action and may have roll characteristics that are tunable to characteristics of the wave action. The pendulum may be supported by the watercraft to enable the pendulum to swing in response to the wave action. An energy converter may be configured to convert the relative movement of the pendulum and watercraft into electrical energy. The pendulum may also be tunable to characteristics of the wave action.

Abstract: An apparatus for extracting wave energy may include a watercraft, a pendulum and an energy converter. The watercraft may be configured to roll in response to wave action and may have roll characteristics that are tunable to characteristics of the wave action. The pendulum may be supported by the watercraft to enable the pendulum to swing in response to the wave action. An energy converter may be configured to convert the relative movement of the pendulum and watercraft into electrical energy. The pendulum may also be tunable to characteristics of the wave action.

Abstract: An apparatus for extracting wave energy may include a watercraft, a pendulum and an energy converter. The watercraft may be configured to roll in response to wave action and may have roll characteristics that are tunable to characteristics of the wave action. The pendulum may be supported by the watercraft to enable the pendulum to swing in response to the wave action. An energy converter may be configured to convert the relative movement of the pendulum and watercraft into electrical energy. The pendulum may also be tunable to characteristics of the wave action.

Abstract: An apparatus for extracting wave energy may include a watercraft, a pendulum and an energy converter. The watercraft may be configured to roll in response to wave action and may have roll characteristics that are tunable to characteristics of the wave action. The pendulum may be supported by the watercraft to enable the pendulum to swing in response to the wave action. An energy converter may be configured to convert the relative movement of the pendulum and watercraft into electrical energy. The pendulum may also be tunable to characteristics of the wave action.