Abstract: Aircraft and airfoils for more efficient flight operations using electric motors. An aircraft includes an airfoil and a thrust device rotatably mounted within the airfoil. An airfoil includes a top surface, a bottom surface, a compartment disposed between the top surface and the bottom surface, and a thrust device rotatably mounted within the compartment.

Abstract: Apparatus, system, and methods for providing load responsive friction for a cable trolley device. An apparatus includes a housing configured to receive a cable. The housing includes a load attachment point and a friction device attached to the housing. The friction device is configured to cause deflection of the cable relative to an amount of load attached to the load attachment point.

Abstract: Apparatuses and systems for more efficient construction and operations of a vehicle. A structural/storage system that includes a plurality of storage elements. Each of the storage elements includes a housing having an outer surface, an inner surface, and at least one opened end. The structural/storage system further includes first attachment devices disposed at the outer surface and second attachment devices disposed at the outer surface. The second attachment devices of a first one of the plurality of storage elements are configured to be removably attachable to the first attachment devices of a second one of the plurality of storage elements.

Abstract: An apparatus, system, and method are disclosed for expandable photovoltaic electricity generation for a motorized vehicle. The present invention includes one or more retractable photovoltaic panels configured to increase solar energy collection when deployed. The invention further comprises a storage module configured to hold the photovoltaic panels when not in use. The storage module is portable with the motorized vehicle.

Abstract: A compact integral locking means for receiver tube coupled type towing accessories such as fixed drop ball mounts, adjustable height ball mounts, towing bars, bicycle racks, cargo boxes, and many other receiver tube type towing accessories. The current invention provides a integral locking means for lockingly engaging or coupling a towing accessory within a receiver tube that is attached to a tow vehicle. The integral locking means comprises a slide pin, a slide pin actuation means, and a slide pin actuation control means or mechanism. The slide pin actuator control means controls the slide pin actuator means. the slide pin actuator means moves one or more slide pins from a locked or receiver tube coupled position to a unlocked or uncoupled position.

Abstract: A trailer coupler locking device having a shackle which has a top joined to two substantially straight legs with a curved section that is preferably a generally convex curve. The base contains a cylinder lock symmetrically located between two apertures for accommodating the substantially straight legs of the shackle. A plug member is located on top of the base; preferably the plug member is a stepped ball. Associated with the cylinder lock are two bolts, one of which has an end that enters the first aperture for the straight legs and another of which has an end that enters the second aperture for the straight legs. A blocking member works with the cylinder lock to control the movement of the straight legs and preferably has three positions for doing so which are associated with the positions of the preferred cylinder lock, which is a three-position lock.