|7980907||Amphibious paddle track propulsion system|
An amphibious self-engaging paddle track propulsion system mountable on any floater, vessel or vehicle for enabling the ability to selectively travel over land or water, the system having an elongated endless paddle track, plurality of spring-loaded paddles, plurali...
A motorized skiboard includes a skiboard having a central opening with a drive belt mounted in said central opening and driven by a motor and encased and held in a drive belt housing. First and second foot mounts rest on said housing on either side of sai...
|4383665||Wind-driven rotating aircraft landing wheels|
An improved landing wheel for an airplane, which includes a plurality of freely pivoted fins from eccentrically located pivot pins around one side of the wheel, the fins being straight but flexible, so that in one position relative to the wind from a forw...