Abstract: A vehicle chassis is supported on front and rear wheels for road and runway engagement. A propeller assembly is disposed between the front and rear wheels and faces the rear. Wing assemblies on opposite sides of the chassis are foldable along the sides of the chassis to form side panels for the road form of the vehicle. A tail assembly on the chassis is shiftable forwardly and rearwardly and has a pair of vertical stabilizers connected together at the top by a horizontal laterally extending stabilizer. A pressure regulated retractable stabilizing wheel is provided between the front and rear wheels and is arranged to engage a runway and provide stabilizing functions for take off and landing.

Abstract: An atomizer is arranged for support on the mounting post interiorly of the air filter of fuel feed systems of internal combustion engines. A fuel container is provided and a conduit leads from the container to the atomizer. The conduit terminates in a hollow housing arranged to be clamped on top of the cover of the air filter. The atomizer has a Venturi shape to provide agitation of the fuel to assist in atomization and furthermore it has inner and outer walls with the Venturi shape to provide improved atomization of the fuel.

Abstract: The apparatus is convertible between road vehicle and aircraft forms having wing and tail assemblies as well as propelling structure that are movable outwardly for the flying form and movable inwardly in stored position for the road vehicle form. All of the parts of the apparatus remain intact in both the road and flying forms. Storage for the wing and tail assemblies and the propelling structure is in side and end compartments, and the wing and tail assemblies have foldable sections for this purpose. The apparatus has a pair of front wheels and a pair of rear wheels, the latter wheels being movable between a narrowed rearward position for road use which allows storage of the wings in the side compartments and a forward widened position for aircraft use. The tail assembly is supported on a slide mechanism which extends downward in a forward longitudinal direction whereby the tail assembly is lowered as it is moved forwardly for storage in the rear compartment.

Abstract: A casing arranged to be connected to accelerator structure of a vehicle and movably enclosing a foot engaging member projecting through the top of the casing. An air tight collapsible bag in the casing is disposed under the foot engaging member, and such collapsible member is operable by the vacuum in the engine fuel intake system to automatically back off the throttle under certain engine conditions and to apply more throttle under other conditions for smoothening out the function of the vehicle and for other reasons.