Abstract: A fluid propulsion device having blades and a surrounding frustroconical housing which rotates with the blades to accelerate fluid flow through the device. The device may be part of a marine drive or part of a fluid pump or motor.

Abstract: A dart has a barrel with a compartment having an LED therein, a tail and a point section at opposite ends of the barrel. One of the tail and point sections is detachable fromn the body and defines a recess with a battery therein. A first pair of contacts on the barrel are connected to the LED by a pair of wires, and a second set of contacts in the recess connect with the first pair when the sections and barrel are assembled to activate the LED.

Abstract: A skier's accessory tool including a body in the general configuration of a ski boot having a rear, top, front and sole portion. A first recess is provided in the sole portion and Phillips-type screwdriver is pivotally mounted in the recess and received therein in a closed position. A second recess extends along the top and front of the boot. A second blade is pivotally received in this recess in the closed position. The second blade may be folded out and includes a U-shaped portion for engaging buckles. The outer end of the blade is configured as a flat screwdriver. A section of the blade may also form an ice scraping edge.

Abstract: A load balancing device for rotating apparatus such as washing machines and vehicle tires. In one embodiment the present invention consists of an inner conduit defining an interior raceway which contains a high density fluid mass which shifts to oppose load imbalances. Universal mounting brackets are provided attached to the balancing ring to the rotating structure. The attachment brackets are slidable along the ring and adjustable and adapted for securement in various arrangements. In other embodiments the attachment brackets are adapted to accomodate various wheel configurations and bolt spacings for vehicles.