Abstract: A thin-form mouthguard can be formed from a U-shape planar sheet. The sheet can be made of expanded-polytetrafluoroethylene and have a thickness between 0.02 inches and 0.25 inches. The sheet can also include instructions for modification of the mouthguard printed thereon. A method for preparing a mouthguard is also provided.

Abstract: Embodiments of the present invention relate to an adaptable wing having a variable geometry for influencing aerodynamic performance, the wing comprising a jointed leading edge having a main pivot, and a wrist joint, with a wing arm therebetween, and a distal wing hand depending from the wrist joint; the wing being reciprocally actuable, via the main pivot and wrist joint, between a first state having an extended wing planform and a second state having a tucked wing planform.

Abstract: A flat-stock aerial vehicle includes a body having a plurality of flat-stock sheets connected to one another, at least one motor, and at least three aerodynamic propulsors driven by the at least one motor. The aerodynamic propulsors can provide lifting thrust, pitch, yaw, and roll control in both helicopter-like hover flight and airplane-like translational flight.

Abstract: An toy return glider having a first sheet member with a head cover section, a wing section and a tail section disposed along a longitudinal axis, and a rear air intake duct disposed within a connecting area between the wing section and the tail section. The toy glider also has a second sheet member with a body and rudders disposed along the longitudinal axis. The body has two longitudinal fold lines parallel to the longitudinal axis, and when the second sheet member is folded upward, two first slots extend obliquely rearward and downward with the rear air intake duct cover coupled with the two first slots, and the head cover section bonds a front section of the body to form a front air intake duct. The toy glider enhances the structural strength, overall stability and life time of the glider.

Abstract: An toy return glider having a first sheet member with a head cover section, a wing section and a tail section disposed along a longitudinal axis, and a rear air intake duct disposed within a connecting area between the wing section and the tail section. The toy glider also has a second sheet member with a body and rudders disposed along the longitudinal axis. The body has two longitudinal fold lines parallel to the longitudinal axis, and when the second sheet member is folded upward, two first slots extend obliquely rearward and downward with the rear air intake duct cover coupled with the two first slots, and the head cover section bonds a front section of the body to form a front air intake duct. The toy glider enhances the structural strength, overall stability and life time of the glider.

Abstract: A mechanism for attaching a wing to a fuselage of a model airplane. The mechanism includes a mounting base, a wing bolt, a retaining device that holds the wing bolt in the mounting base, and a flexible support member positioned between the retaining device and the mounting base. A wing assembly for a model airplane is also disclosed. The wing assembly includes a first and second wing section and a wing rib for connecting the two sections. A means for connecting a wing assembly to a model airplane is also disclosed.

Abstract: A semi-scale toy plane is disclosed. The fuselage is made of tetrahedral folding plates. Fuselage has a front and a rear parts. The front fuselage is an enhanced straight tube, the rear fuselage is a tetrahedral cone. Front and rear fuselages are joined by joint members. Rear fuselage and tail plane are integrally formed with a crease divided therebetween. Wing is secured to fuselage by engaging buttons to button holes. V-shaped dihedral frames are secured between wing and dihedral holders of fuselage. This invention is capable of finishing assembly in about 10 seconds without requiring a user having any glue, tool, skill or aerodynamics knowledge.

Abstract: A glider toy for entertainment purposes. The glider toy includes a housing that includes an upper plate section and a lower plate section. The upper plate section has a substantially circular shape. The lower plate section is generally crescent-shaped. A bulbous member is attached to the top side of the upper plate section. A nose piece is fixedly coupled to the housing and positioned adjacent to the front portion of the lower plate section. A tail member is attached to the top side of the upper plate section and is positioned adjacent to a rear edge of the upper plate section. A pair of fin members is attached to and extends away from opposing sides of the tail member. A pair of support members is attached to and extends away from the bottom side of the lower plate section. All of the aforementioned parts comprise a resilient closed cell material.

Abstract: The present invention proposes a toy airplane, which can turn a round and fly back to the original position where it has been launched by hand. The toy airplane comprises a foldable fuselage, a wing, a tail, a central fixing plate, a tail fin, a balance weight block, and a plurality of adhesive sheets. A pair of wing slots and a pair of tail slots are respectively disposed at the middle section and rear section of the foldable fuselage. The wing slot forms a specific curve, and the tail slot is matched with the wing slot to tilt a proper angle. The wing and the tail can exactly penetrate through the wing slots and the tail slots, respectively. Notches are respectively disposed at the front edges and rear edges of the central lines of the wing and the tail. The central fixing plate having a balance weight groove and a first retaining groove is installed in the foldable fuselage and is fastened in the two notches of the wing via the first retaining groove.

Abstract: A kit for assisting in the fabrication of a model is disclosed. Such kit includes a compact disk positionable within the computer for being read and for the issuing of commands to the printer in response to input from a user. The compact disk includes a plurality of separate and distinct programs, each program representing a particular model to be fabricated. Each program includes instruction data adapted to be printed out by the printer and read by a user. Each program further includes template data adapted to be printed out and used by a user in the fabricating of a model. The instructions and templates correspond to the program selected by a user. The templates are adapted to be printed out by the printer and cut by the user in accordance with the printed out instructions in a correlated manner in response to commands from the computer and input from the user from any particular program on the compact disk.

Abstract: A toy glider includes: a fuselage having a pair of bifurcated members folded from an elongated sheet to form a general triangular prism tapered forwardly, a nose member secured on a front head portion of the fuselage, a wing member cut out from a planar sheet to be a generally triangular shape and transversely inserted in a middle portion of the fuselage having a rear blade portion formed in a central rear portion of the wing member, a plurality of stabilizers each cut out from a planar sheet to be a generally semi-circular or triangular shape and horizontally inserted in a rear portion of the fuselage, and a rudder cut from a planar sheet to form a triangular shape and vertically secured on a tail portion of the fuselage, having a first stabilizer keeping a horizontal flying of the glider; a second stabilizer bending the rear blade portion of the wing member downwardly for a downward pitching for launching the glider downwardly; and a third glider upwardly bending a pair of tail flap portions of the fuselage

Abstract: The subject invention relates to a launcher and one or more gliders for use therewith. The dihedral of the glider is achieved with two parallel creases that run front to back down the center of the glider. At the leading edge of the wing surfaces, self adhesive strips of flat magnetic sheet stock can be applied to the top and bottom of each wing to provide both proper weight to initiate desirable trim to the glider and to provide a force to separate the nested planes after launching, i.e., magnetic repulsion. For a multiple launch, the gliders are stacked on top of one another and placed upside down and mounted on a launching stick. Through use of a vertical upward force the gliders are launched with sufficient force so that wind resistance will induce the glider wings to collapse upon themselves, facilitating a higher launch.

Abstract: An aerial device capable of sustained flight and formed from a single sheet of substantially planar material and having a weight element receivable thereon for aiding the aerial device in achieving superior flight characteristics.

Abstract: A folding assembled article in the form of a toy airplane has a fuselage of paper folded along a longitudinal line, a paper wing assembled with the fuselage and movable between a folded configuration, wherein the assembly is flat for packaging purposes, and an erect configuration, wherein the wing is in an extended lateral position relative to the fuselage for flight, and a locking member for locking the wing in the extended lateral position against inadvertent return to the folded configuration.

Abstract: A series of model airplane or toy glider complex three dimensional fuselage constructed of semi-rigid scoreable and foldable material such as sheet polystyrene foam mated to wing via elastic band. Varieties may include gliders resembling natural creatures.

Abstract: A toy helicopter device is disclosed which is capable of a projected nose up ascent and a helicopter nose down descent. The device has a streamlined two dimensional main body comprising a nose, stem, and tail portion. The tail portion is hingedly connected to two helicopter blades arranged adjacent and partially overlapping each other. Resilient means located in the gap between the tail and helicopter blades can be adjusted to control helicopter blade deployment early or late during the catapult projection. At a selected rotational velocity from the catapult, the spinning toy helicopter deploys the helicopter blades to approximately right angles to the main body and the device continues to rotate slowly to the ground. The launch angle relative to the ground is not significant in determining a successful deployment.