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| Number | Title | Issue Date |
| 7288037 | Toy football and method therefor An improved toy football having a plurality of fins dimensioned to stabilize the toy football while in flight, to provide for a controlled throw, and to reduce drag so that the toy football may be thrown farther than prior art toy footballs. An improved toy football... | 10/30/2007 |
| 6997828 | Boomerang A boomerang includes a central disk comprised of concentric inner and outer rings that are connected by radially extending connection sections. Wings radially extend from an outer circumference of the outer ring, corresponding in position to the connection sections.... | 02/14/2006 |
| 6908471 | Ophthalmologic knife The present invention relates to an ophthalmologic knife for being guided into an incision formed at an eyeball and for widening the width of the incision, the ophthalmologic knife comprising a handle and a blade portion having a flat shape formed at a end portion o... | 06/21/2005 |
| 6837813 | Open center returning flying polygon A throwable toy includes an open center polygon defining a closed ring having upper and lower surfaces including connected linear segments and a plurality of shortened, generally rounded, rearward-projecting members extending outwardly and downwardly from said ring ... | 01/04/2005 |
| 6814679 | Boomerang for sport A boomerang is made from a flat sheet material, and includes interconnecting portions angularly displaced from one another about a center point, and terminating at an arc boundary that cooperates with the center point to define a radius, and blades integrally and re... | 11/09/2004 |
| 6739993 | Flying toy A launcher (20) for a flying object, such as a boomerang (21), having a body that includes a plurality of wings (31). The launcher includes a stop (23), against which the object rests at a point (27) on its body. A moving member ( | 05/25/2004 |
| 6682449 | Flying toy and method of making same The present invention is a boomerang flying toy having a plurality of blade arms with airfoil-like tapered perimeter edges along their respective cut lines to give the boomerang toy improved aerodynamic performance characteristics. The blade arms extend r... | 01/27/2004 |
| 6659832 | Boomerang for sport A boomerang is made from a flat sheet material, and includes a plurality of blades connected to a central body by a plurality of interconnecting portions, and angularly displaced from one another about a center point. Each blade includes leading and trail... | 12/09/2003 |
| 6443862 | Returning flying polygon A throwable boomerang includes an open center polygon defining a closed ring having upper and lower surfaces including from three (3) to eight (8) connected linear segments and a plurality of tabular shortened, generally rounded, rearward-projecting membe... | 09/03/2002 |
| 6443861 | Flying toy and method of making same The present invention is a boomerang flying toy having a plurality of blade arms with airfoil-like tapered perimeter edges along their respective cut lines to give the boomerang toy improved aerodynamic performance characteristics. The blade arms extend r... | 09/03/2002 |
| 6293879 | Multi-disk boomerang A flying toy of the boomerang type utilizing circular airfoils in the form of disks comprising a main disk (10) with a plurality of control disks (12) or (36) affixed to its perimeter at their perimeters, sufficient to provide rigidity and lying in a gene... | 09/25/2001 |
| 6294237 | Free form laminated cardstock assembly An assembly for creating free form laminated objects, such as a throwing toys or napkin ring that can be printed or decorated by the use of printer or copier without jamming. The assembly includes a sheet of cardstock or thin printable sheet material, a s... | 09/25/2001 |
| 6247989 | Secondary lift flying ring A flying toy in the form of an aerodynamic flying ring. An annular disk (17) surrounds a central opening (12) to create a ring. A convex upper surface (11) deflects air flowing over the top side of the disk, increasing air speed and reducing downward air ... | 06/19/2001 |
| 6179738 | Flying toy A thin, planar flying toy has a plurality of radially extending, equiangularly spaced, relatively constant width arms extending from a central hub. Each arm has a given length that is substantially greater than the width of each of the arms. The central h... | 01/30/2001 |
| 5906529 | Multi-winged boomerang with snap clutch A multi-winged flying toy includes a handle with a wing attachment at the upper end and a plurality of wings, each with a center hole for attachment. The attachment mechanism allows pivoting of the wings. The handle includes positioning and torque resisti... | 05/25/1999 |
| 5868596 | Flying toy A thin, planar flying toy has a plurality of radially extending, equiangularly spaced, relatively constant width arms extending from a central hub. Each arm has a given length that is substantially greater than the width of each of the arms. The central h... | 02/09/1999 |
| 5615892 | Boomerang with consistently accurate flight and return capabilities A boomerang with three convolute curved blades connected to a central hub, said blades being uniformly shaped and equally spaced about a central axis and has unique airfoil characteristics around the entire peripheral edge, the unique airfoil characterist... | 04/01/1997 |
| 5490678 | Ambidextrous boomerang Boomerang throwable by left-handed or right-handed persons to return to the thrower is homogeneous and includes plurality of arms extending radially from a central portion with each of the arms having leading and trailing edges symmetrical about respectiv... | 02/13/1996 |
| 5413354 | Flying toy A hand-launched flying toy formed of three or more equally spaced and substantially coplanar blades or vanes radiating out from a central hub area. The blades are shaped to have minimum air drag and substantially zero aerodynamic lift. When launched the d... | 05/09/1995 |
| 5213539 | Returning flying ring toy A returning flying ring toy (10) of modified triangular-ring planform and an improved airfoil comprising an abrupt transition (49) on the upper surface (15-46,48), near the trailing edge (33).... | 05/25/1993 |
| 5199717 | Light weight boomerang toy having improved flight and return characteristics A light weight boomerang toy having several blades of unique configuration extending from a central hub. Each blade has a straight or uniformly curved leading edge and a scalloped trailing edge. The trailing edge of each blade decreases in thickness from ... | 04/06/1993 |
| 5173069 | Autorotative flyer An autorotative flyer comprises a circular root portion integral with a wing portion; the root being generally circular and providing a counterweight of from 55-85%, preferably 70-72%, of the total weight of the flyer and locating the center of gravity of... | 12/22/1992 |
| 4934713 | Boomerang A boomerang in the form of a generally planar ring having a circular outer edge and an inner opening. The opening is shaped so that equiangularly spaced apart planar wing elements are formed which have greater radial width than the portions of the rings w... | 06/19/1990 |
| 4861304 | Throwing toy A lightweight, one piece throwing toy is disclosed which, when thrown, provides a unique pattern of flight. The toy is provided with a pair of wing sections joined together by a throwing section. Each wing section is constructed to be of similar length an... | 08/29/1989 |
| 4856793 | Continuous sound making boomerang A boomerang includes an apparatus to continuously generate audible sound. The generator is located centrally so that flight characteristics of the boomerang are not adversely affected. A resilient member holds a battery in place during use so that the sou... | 08/15/1989 |
| 4817961 | Flying toy with return-flight flying pattern A flying toy includes first and second blade-like members which are packaged, shipped and stored unassembled in a flat, compact configuration and are erected readily into an assembled, bowed configuration suitable for flight in a return-flight pattern, th... | 04/04/1989 |
| 4772030 | Boomerang A boomerang comprising a central hub having a generally central aperture therein, a plurality of equally spaced, cambered blades extending generally radially outwardly from the hub, a tip depending generally downwardly from each of the blades but one, the... | 09/20/1988 |
| 4722532 | Mass produced straight boomerang with consistent flight characteristics A straight boomerang which may be massed produced and which provides consistent and reproducible flight characteristics, is constructed based on an analysis of the aerodynamic forces which are operable on the boomerang during its flight and the use of a m... | 02/02/1988 |
| 4591164 | Boomerang The present invention provides a substantially flat boomerang device comprising a flat central ring member having inner and outer circular boundaries and defining a central aperture, at least two wing members projecting outwardly from the outer boundary o... | 05/27/1986 |
| 4541637 | Boomerang An improved boomerang is provided which returns approximately to the point from which it is thrown and which does not require a high degree of skill on the part of the user to be thrown properly. The boomerang has an integral, generally V-shaped body form... | 09/17/1985 |
| 4479655 | Boomerang A boomerang of circular configuration. A planar ring having a streamlined cross-section described by a convex upper surface and a straight lower surface defines a central opening and an outer perimeter. Three wings extend radially from the outer perimeter... | 10/30/1984 |
| 4461485 | Method and apparatus for a game A flying toy includes an aerodynamic disc having a centrally located opening extending therethrough. A plurality of wings are mounted on the disc adjacent the opening and the wings extend upwardly and outwardly from the opening to a point beyond the perip... | 07/24/1984 |
| 4452461 | Boomerang A cross-stick boomerang has its leading edges or trailing edges substantially aligned. The outermost portion of each blade extends farther to the rear than does the general line of the trailing edge. In one version, an inner fin is provided inwardly of th... | 06/05/1984 |
| 4421320 | Boomerang The disclosure is directed to a multi-arm boomerang with a structural configuration with permits simple modification of operational flight characteristics. The boomerang comprises a plurality of airfoil-shaped arms spaced about a central axis with an airf... | 12/20/1983 |
| 4337950 | Circular boomerang A toy boomerang is provided in the form of a generally flat circular body having a plurality of spiral arms extending between a central hub and an outer annulus. Each spiral arm defines an airfoil providing lift to the toy when it is spun through the air.... | 07/06/1982 |
| 4284278 | Flying toy A flying toy of the boomerang type having at least three airfoils, or wings, equiangularly spaced about a central vertical axis and extending horizontally outward from a center portion. Each wing carries at its outer end an annular-shaped wing stabilizer ... | 08/18/1981 |
| 4238906 | Flying toy A flying toy of the boomerang type having two airfoil arms extending horizontally from a center portion. Each arm carries at its outer end a horizontally disposed, annular-shaped stabilizer having a horizontally disposed outer periphery whose diameter is ... | 12/16/1980 |
| 4235040 | Model airplane A model airplane comprises a flat wing and a member connected to the wing midway between the wing-tips and near the back of the wing which extends away from the top surface of the wing. A freewheeling vane is connected to the back of the member and spaced... | 11/25/1980 |
| 4222573 | Boomerang A boomerang comprising a plurality of wings with an internal plastic armature and a soft outer covering.... | 09/16/1980 |
| 4216962 | Boomerang A boomerang comprising a pair of elongate, airfoils coupled together at their midsections to form a cross. Mechanism is provided for releasably coupling the midportions of the airfoils for separation under a predetermined force to normally prevent relativ... | 08/12/1980 |
