Abstract: A fixed-wing unmanned aerial vehicle (UAV) includes a propeller gimbal operably coupled to the body of the UAV at the forward end and the propeller gimbal is configured to pivot the propeller about a gimbal pivot axis to change a propeller angle. A controller of the UAV may be configured to control an attitude of flight of the UAV by controlling operation of the motor, the propeller gimbal, and the control surface assembly. The controller may be further configured to determine in-flight trajectory modifications that may require high maneuverability via high angle-of-attack attitudes of flight that are implemented via the propeller gimbal and trajectories determined from a dynamics model of the fixed-wing UAV.

Abstract: A vehicle for aerial-aquatic locomotion is provided. The vehicle may include a propeller, an electric motor operably coupled to the propeller and configured to rotate the propeller, a maneuvering assembly configured to change an attitude and altitude of the vehicle, and a controller operably coupled to the electric motor and the maneuvering assembly. The controller may be configured to receive a command for the vehicle to exit a first medium and enter a second medium, compute or retrieve a hybrid trajectory, and control the electric motor and the maneuvering assembly to maneuver the vehicle in accordance with the hybrid trajectory.

Abstract: A vehicle for aerial-aquatic locomotion is provided. The vehicle may include a propeller, an electric motor operably coupled to the propeller and configured to rotate the propeller, a maneuvering assembly configured to change an attitude and altitude of the vehicle, and a controller operably coupled to the electric motor and the maneuvering assembly. The controller may be configured to receive a command for the vehicle to exit a first medium and enter a second medium, compute or retrieve a hybrid trajectory, and control the electric motor and the maneuvering assembly to maneuver the vehicle in accordance with the hybrid trajectory.

Abstract: A utility bag for carrying and distributing a plurality of generally thin promotional sheet materials includes a housing having a generally rectangular parallelepiped shape and including, in combination, a front panel, a rear panel, a pair of sides panels and a bottom panel, wherein the combination forms an internal compartment open at one end, and wherein the internal compartment is sized to receive such plurality of generally thin promotional sheet materials. A handle or flexible strap is connected to the housing for carrying such bag.

Abstract: A children's playground or recreational apparatus is provided in which the bottom half of a large world globe is encased in a stationary socket, there being between the surface of said globe and said socket a means for supporting said globe and for producing frictional drag against the globe's surface in order to restrict the globe's potential rotational speed to a manageable limit. A child achieves an erect and balanced stance atop the globe, and by an asymmetrical shift in foot position and/or weight causes the globe to rotate in a desired direction at a desired speed, thus enabling the child to "walk around the world". The globe is provided with a slip-resistant surface, and padding or other protection is provided around the base of the apparatus to attenuate the effects of a fall. The apparatus can be entertaining and recreational, it can develop enhanced balance, coordination and agility, and it can provide a fun means for learning about world geography.

Abstract: A head, neck and shoulder therapeutic exercise device which mechanically assists the human head and neck with intermittent rearward/forward movement in order to help correct or attenuate by means of muscular conditioning the cervical misalignment associated with forward head and flexible cervical lordosis. Mounted on a chair, an adjustable frame supports above the patient's head a motor assembly in fixed position and a motion-assist assembly which is horizontally moveable. The latter comprises in part a roller block with affixed roller bearing plate extending down behind the patient's head. The motor shaft, also behind the patient's head, has a cam which rides against a roller bearing in the roller bearing plate. As the cam's high side rotates against the bearing, the bearing plate moves away from the patient, thereby transferring rearward tension to the head by means of stretchable straps attached to said bearing plate and placed around the patient's forehead and chin.

Abstract: An apparatus for collecting flat or semiflat materials while simultaneously retrieving bottles and cans includes a ground engageable rotating drum (50) with a plurality of fingers (80) extending radially from the drum. A spring finger assembly (100) cooperates with the drum (50) to retrieve articles from the ground. The spring finger assembly includes an upper and lower unit (104, 102) each including a plurality of spring fingers (128) mounted on a rotary shaft assembly (116, 118, 122) driven in conjunction with the rotation of the drum. The rotary shaft assembly and the spring fingers attached thereto rotate with respect to fixed stripper plates (140). A camming device (122, 130, 132) acts to rotate and extend the fingers beyond the stripper plates when the fingers move adjacent to the drum fingers and to rotate and withdraw the spring fingers behind the stripper plates upon further rotation such that the material engaged by the spring fingers is stripped therefrom.

Abstract: A method and apparatus for collecting flat or semiflat materials while simultaneously retrieving bottles and cans includes a ground engageable rotating drum (52) with a plurality of fingers (60) extending radially from the drum. A plurality of toothed discs (210) is rotatably mounted on a shaft and driven in conjunction with the rotation of the drum in a direction opposite that of the drum. The toothed discs (210) are positioned adjacent to but above ground level during operation of the apparatus and assists in the engagement and movement of objects by the drum and fingers to a collection location (32). A plurality of belts (130) is engaged between pulleys (212) mounted intermediate of the toothed discs (210) and corresponding pulleys (126) on a shaft spaced from the toothed discs. The belts are positioned on the trailing side of the drum and above the toothed discs and assist in engagement and movement of objects by the drum and fingers to the collection station.