Abstract: A seat for a mobility device accommodating flexibility, personalized comfort, and transportability. The seat can include a button push means to enable movement of a height-adjustable armrest. The seat back can fold upon the seat for transportability. The seat cushion and armrest cushion can be removably mounted and separately replaceable. The seat can be mounted upon various types of devices, including, but not limited to, wheelchairs.

Abstract: A priming system for preventing air-locking for use on a centrifugal pump having a priming system with a two piece detachable design. This permits the upper portion of the priming system to be removed for routine maintenance. The lower portion of the priming system includes a plurality of primary stationary vanes located longitudinally in the flow path of multi-phase fluids (air and water) which permit the removal of trapped air. Additional removable secondary vanes are located in the flow path after the primary stationary vanes and prior to the intake structure of the centrifugal pump housing. Such multiple vane structure allows the centrifugal pump to pump multi-phase fluids during a wide variety of conditions without air-locking and without requiring any modifications to the centrifugal pump impeller.

Abstract: A dual pumping system for use on a movable flood control barrier structure to allow the structure to be swung into the opening of a waterway and sunk to prevent flooding during storms and then floated and swung out of the waterway after the storm is disclosed. A buoyant generally rectangular barge may be employed as the movable flood control barrier. A centrifugal pumping system pumps water into compartments within the barrier structure so it sinks to the bottom of the waterway while the same pumping system pumps water back to the waterway to float the structure. A hydraulic pumping system operates hydraulic winches to move the structure into and out of the channel using cables. The two pumping systems are capable of operating both the water pumping system and hydraulic winch system simultaneously or independently with a single engine.

Abstract: A dual pumping system for use on a movable flood control barrier structure to allow the structure to be swung into the opening of a waterway and sunk to prevent flooding during storms and then floated and swung out of the waterway after the storm is disclosed. A buoyant generally rectangular barge may be employed as the movable flood control barrier. A centrifugal pumping system pumps water into compartments within the barrier structure so it sinks to the bottom of the waterway while the same pumping system pumps water back to the waterway to float the structure. A hydraulic pumping system operates hydraulic winches to move the structure into and out of the channel using cables. The two pumping systems are capable of operating both the water pumping system and hydraulic winch system simultaneously or independently with a single engine.

Abstract: A priming system for preventing air-locking for use on a centrifugal pump having a priming system with a two piece detachable design. This permits the upper portion of the priming system to be removed for routine maintenance. The lower portion of the priming system includes a plurality of primary stationary vanes located longitudinally in the flow path of multi-phase fluids (air and water) which permit the removal of trapped air. Additional removable secondary vanes are located in the flow path after the primary stationary vanes and prior to the intake structure of the centrifugal pump housing. Such multiple vane structure allows the centrifugal pump to pump multi-phase fluids during a wide variety of conditions without air-locking and without requiring any modifications to the centrifugal pump impeller.