Abstract: A dart tool (110) having a hollow first housing (112). The dart tool (110) has a flight straightener (114) securely attached at a rear distal end to the first housing (112). The flight straightener (114) has a flight straightener top (114T) which has a flight straightener top front (114TA) having a flight straightener top front right corner (114TAR) and a flight straightener top front left corner (114TAL). The flight straightener (114) further has a flight straightener bottom (114B) which has a flight straightener bottom front (114BA) having a flight straightener bottom front right corner (114BAR) and a flight straightener bottom front left corner (114BAL). A first sharpener (116) securely positioned within the first housing (112).

Abstract: A device for measuring a movable object, such as a baseball, football, hockey puck, soccer ball, tennis ball, bowling ball, or a golf ball. Part of the device, called the object unit, is embedded, secured, or attached to the movable object of interest, and has a spin detection circuit, electronic processor circuit, magnetic field sensor circuit, and a radio transmitter. The other part of the device, called the monitor unit, is held or worn by the user and serves as the user interface for the device. The monitor unit has a radio receiver, a processor, an input keypad, and an output display that shows the various measured motion characteristics of the movable object, such as the time of flight, speed, trajectory height, spin rate, or curve of the movable object, and allows the user to input data to the device.

Abstract: A throwing good for use in sky diving, including a thin-gage, synthetic resin-made back body, a roughly circular opening window, a needle, a front body, and ballast water. The back body has a bottom and a cylindrical shape. The bottom has a small hole which can be opened and closed at will by means of a plug. The opening window is provided on the wall close to the front opening of the back body. The needle is directed toward the opening window protruded from the inner wall confronting the opening window. The front body has the same diameter as that of the back body of which back opening has a tip shaped into a hemisphere. The back opening of the front body is joined to the front opening of the back body and the joining portion is integrated by covering it with a rubber band of broad width capable of covering even the opening window. The ballast water fills the front body.

Abstract: A projectile device for use in a tossing game. The projectile has a body with a concave bottom surface and a convex top surface. The body can have any shape, but is preferably triangular, wherein three side edges define the convex top surface and the concave bottom surface. Regardless of the shape of the projectile's body, the body of the projectile has a geometrical center. However, the projectile is fabricated so that the body of the projectile has a center of gravity that does not correspond to the geometrical center of the body. As a result, if the projectile is tossed with a spinning motion, the projectile will not evenly rotate about its geometrical center. The combination of the shape of the projectile, the contours of the projectile and the off-center center of gravity for the projectile make the flight characteristics of the projectile difficult to anticipate. The unpredictability in flight characteristics is a desired novel feature in the tossing game for which the projectile is used.

Abstract: The flying ball of this invention is a solid foamed synthetic polymer composition ball having an opening therethrough in which is engaged a solid foamed fuselage so that the ball can be moved front and back on the fuselage. The ball carries wings, and the fuselage carries tail surfaces, both preferably of solid foamed polymer material.

Abstract: A molded plastic play ball having the appearance of a humanoid head. Formed on the surface on the ball at sites corresponding to respective facial features of the head, such as the eyes and a nose, are flat depressions that merge with the contours of the ball. Adhered to these flat depressions are stickers having color-printed thereon facial features appropriate to the sites. The appearance of the humanoid head is determined by the stickers selected by the player and applied to the depressions, which features may be altered by replacing some or all of the stickers with different stickers.

Abstract: An incentive producing apparatus having a symbol displaying device, a player actuated device for changing the symbols on the displaying device, an accounting device for recording the changes in symbol displays caused by the operation of the player actuated device, and a processor responsive to the manner in which the player operates the device in such a way that the device responds to player input in the form of response time relative to the time of day or calendar time in order to adjust the operation of the apparatus to automatically, continually, proportionally, and subtly increase or decrease the difficulty of operation to maintain the incentive of the player to continue to operate the apparatus. The apparatus can be in the form of a slot machine game, an arcade game, a video action game or an education game. An embodiment of each type of such apparatus is disclosed.

Abstract: A combination of a pair of soccer shoes and a soccer ball wherein each of the shoes and the ball have an exterior surface marked with selected areas of differing shapes and colors. The markings on the shoes correspond in shape and color to the markings on the exterior of the ball in order to instruct a user where to strike the ball with which portion of his or her foot in order to make the ball move in desired directions.

Abstract: A device for grooming game dart flights includes spaced cooperating cutting blades defining a recess for receiving dart flights and for grooming the flights by smoothing or trimming between the blades.

Abstract: An aerial toy is disclosed that is adapted to be launched into the air using an elastomeric band. The toy includes a nose portion that is generally in the shape of an elongate ellipsoid that has a front end and a rear end. An elongate rib depends from the rear end of the nose portion in a direction generally along the long axis of the nose portion. This rib has a first end adjacent to the nose portion and a second end. The aerial toy also includes a pair of generally planar wing portions which are arranged so that the plane of the first wing portion is generally parallel to and spaced apart from the plane of the second wing portion. The first wing portion depends from the rear end of the nose portion and from the rib, and has a tapered outer edge. The second wing portion depends from the rib and has a surface area approximately 20-80% as large as the surface area of the first wing portion.

Abstract: A marble, preferably spherical, is provided for use with safety by children even when the marble becomes swallowed by a child and becomes lodged in the child's larynx. The marble includes a body having a pair of spaced end caps. First ribs may be disposed between the end caps and may extend between the end caps in a spaced and substantially parallel relationship to one another and to the end caps. Second ribs extend between the end caps in spaced and substantially parallel relationship to one another. The pair of the second ribs at the outermost extremities of the second ribs are continuous with the first ribs. There are first slots between the first ribs and between the first ribs and the end caps. There are second slots between the second ribs. The first and second slots define holes which extend entirely through the marble to provide for continued breathing by a child when the child swallows the marble and the marble becomes lodged in the larynx of the child.

Abstract: A multi-configuration amusement device in the shape of a ball includes a variety of mass components with axially-extending cylindrical bores, a lock fastener unit having a hollow cylindrical shaft, and an hollow cylindrical extension tube, with the lock fastener unit and the extension tube operably insertable into the cylindrical bores of the mass components, for locking the mass components together in a unitary configuration.

Abstract: An airfoil is disclosed that is adapted to be launched into the air using an elastomeric band. The device includes a nose portion that is generally in the shape of an elongate ellipsoid that has a front end and a rear end. An elongate rib depends from the rear end of the nose portion in a dkection generally along the long axis of the nose portion, and a pair of generally planar wings depend from the rib and from the rear of the nose portion. The plane of the first wing portion is generally parallel to and spaced apart from the plane of the second wing portion, and both wing portions have a tapered outer edge. The taper of the outer edge of the first wing portion is oppositely disposed to that of the second wing portion.

Abstract: A transparent sphere comprised of a hardened polymeric resin has an insert provided therein. The sphere is prepared such that there is no air gap between the polymeric resin and the insert. The insert is sized to provide an apparent size of the insert which appears to be substantially the same as the diameter of the sphere and to maintain the structural integrity of the sphere under normal conditions of use of the sphere.