Abstract: A toy top includes a body and a shaft unit. The body includes rotating components which are attached to be rotatable relative to each other. At least two of the rotating components include respective contact portions which come in contact with each other to regulate a rotation range between the two rotating components. The contact portions are configured such that contact between the contact portions gradually become loose as the contact portions repeatedly come in contact with each other due to relative rotation of the two rotating components, and capability of regulating rotation is eventually lost so that the rotation range is expanded.

Abstract: A rotatable device for performing maneuvers as the rotatable device rotates is disclosed. The device comprises a rotatable assembly that includes a first lobe and a second lobe, an intermediate assembly between the first lobe and second lobe, and a first spacer between the intermediate assembly and the first lobe. The first spacer includes a first surface. In a first configuration, the first spacer defines an interference fit with the intermediate assembly. In a second configuration wherein the first spacer is reversed relative to the first configuration, the first surface defines a loose fit with the intermediate assembly.

Abstract: A rotatable device for performing maneuvers as the rotatable device rotates is disclosed. The device comprises a rotatable assembly that includes a first lobe and a second lobe, an intermediate assembly between the first lobe and second lobe, and a first spacer between the intermediate assembly and the first lobe. The first spacer includes a first surface. In a first configuration, the first spacer defines an interference fit with the intermediate assembly. In a second configuration wherein the first spacer is reversed relative to the first configuration, the first surface defines a loose fit with the intermediate assembly.

Abstract: A top toy comprises a hand-held paddle with a contact portion and a handle portion, designed to manipulate, catch and throw a spinning top. The toy has two or more sides configured with substantially flat contact surfaces meeting at a periphery juncture to define an acute angle, such that the spinning top may be scooped or lifted from another surface onto the contact portion. The contact portion includes a perimeter ridge having a gap adjacent the handle, to enable a user to direct the spinning top onto the handle portion, to thereby manipulate, catch, or throw the spinning top from either the contact portion or the handle. The top and/or paddle may be constructed from or covered with glowing or glow-in-the-dark materials or substances to cause the top and/or paddle to glow in the dark, or provide enhanced visibility in daylight.

Abstract: Tossable ring airfoil projectiles configured to adopt and maintain a flying orientation that generates lift. The tossable ring airfoil projectiles generally include (i) a ring airfoil having a trailing end, an aperture, and a longitudinal symmetry axis running through the aperture, and (ii) a tail associated with the ring airfoil and extending rearward beyond the trailing end. The ring airfoil provides lift that allows the tossable ring airfoil projectile to follow a flying trajectory. The tail stabilizes the projectile during flight and may provide a torque that biases the ring airfoil toward preferred flying orientations. The tail may extend along the longitudinal symmetry axis and may include outwardly extending fins. The tossable ring airfoil projectile further may include a connection configured to associate the tail with the ring airfoil. The connection also may extend along the longitudinal symmetry axis and may include outwardly extending flanges.

Abstract: An accessory for diabolo juggling may take the form of hand held unit or a free standing unit. In each case, at least one stretchable, flexible, resilient and elastic member is supported by a frame. The elastic member, preferably a bungee cord, is free of any cross-member and in spaced parallel relation to any additional elastic members such that there is an unobstructed region on each side of the elastic member. In one form, there is a horizontal and vertical frame member with a plurality of elastic members supported in spaced parallel relation on transverse members mounted on the frame members. In use the diabolo is propelled toward the accessory, impinges on one or more cords and is propelled away due to the resilient nature of the cords. The free space on each side of the cord permits passage of the cones of the diabolo on each side of the cord to prevent the cone from contacting a fixed component of the accessory and thus slowing down the rotation of the diabolo.

Abstract: Improvements in automatically returning yo-yos in which an effective centripetal/centrifugal movement, vector, signal and/or urge of one or more parts of the yo-yo is translated or allowed to be translated into an effectively reciprocating movement, vector, signal and/or urge, substantially along or parallel to the axis of rotation of the yo-yo, of another part or parts of the yo-yo such that the yo-yo string and/or the lateral face(s) of the string bearing member are seized, tripped, freed, laterally supported and/or centered in response to the speed of rotation of the yo-yo. The yo-yo of the present invention displays characteristics of extended spinning time, improved balance and adaptability for performing tricks while providing an easy to operate yo-yo for beginners including an automatic return facility.

Abstract: A toy flying saucer comprising a smaller top disc attached to a large base disc at the top. The top disc has a cylindrical connecting end projecting from the bottom edge thereof, which cylindrical connecting end has an annular projection around the outer wall surface thereof inserted to engage in the annular groove around the inner wall surface of the cylindrical connecting end at the top of the base disc. The top disc has a wind resisting surface wider than that of the base disc, which permits the toy flying saucer to automatically turn into a normal position and keep flying in such a normal position once it has been thrown to the air.

Abstract: The Horizontal Axis Rotatory Frustum Toy is a catapulted cylinderlike flying-wing glider that rotates horizontally to produce lift and quite slow flight, suitable indoors or out. A rubber band or string can be used to launch it. Unique shape provides good lateral stability. The design principle may have military dispersion bomb applications.