Abstract: The present invention is directed to a racquet design with an inner and outer frame connected by an isolation system. Uniquely adapted to tennis racquets, the natural motion of the inner frame relative to the outer frame upon impact of the tennis ball on the inner frame will generate spin when the ball contacts the inner frame. The relationship between the inner frame, outer frame and isolation system can control the spin imparted to the ball for a given tennis swing. The tuning of the isolators relative to conventional racquet characteristics will increase the amount of ball spin caused by conventional racquets. The invention also increases the accuracy of the tennis ball's trajectory.

Abstract: A radio controlled model rotorcraft implemented with features improving flight performance using increasing structural stability and increasing rotorcraft visibility and orientation awareness through the use of multifunctioning, configurable, and aesthetically pleasing components.

Abstract: The invention relates to children's construction kits for assembling building toys from connecting elements. The technical result is an increase in functional capabilities, permitting the assembly of simple and complex spatial constructions with dynamic properties. This technical result is achieved by virtue of a building toy consisting of a set of flat shape-forming and decorative modular elements made of a flexible resilient material and having fastening elements attached to the surfaces thereof, said fastening elements forming detachable joints capable of holding together connected portions of the surfaces, wherein each of the fastening elements takes the form of the centre of axial rotation of at least the held portion of the surface of a connected modular element, and each of the shape-forming modular elements has on its opposite surfaces at least one coaxial pair of fastening elements which are rigidly interconnected and have oppositely oriented mating surfaces.

Abstract: A training device for positioning balls on the playing surface of cue sport game tables such as billiards, to assist players in making practice shots to enhance their playing skills and techniques. The training device includes a rectangular base, ramps pivotally attached to the rectangular base and pivoted in a deployed position during use, and in a non-deployed position to provide portability, rails provided on the rectangular base and ramps to accommodate object balls of different sizes, and a ball release system for sequentially deploying balls down the ramps in a controlled manner to accurately position the balls on game tables on a consistent basis without having to push each ball by hand.

Abstract: Embodiments may relate to a foldable play structure which may be easily assembled and which may be form of four or more panels each connected to another to provide an accordion fold structure; corner hinges comprising a first hinge portion attached to one panel of the at least four panels; a second hinge portion attached to another panel of the at least four panels; and a fastener configured to be retained within either the first portion or the second portion; and mid-wall hinge(s) attached to two of the panels and located between the corner hinges. Typically, in a first configuration, the panels of the accordion fold structure are folded to be stacked in substantially parallel planes, and in a second configuration, the panels are unfolded forming a play structure. The retained fastener may be used to secure the corner panels together.

Abstract: A system for analyzing a putting motion includes: mat markers attached to a mat on which a ball is placed; a putter marker attached to a putter for applying an impact to the ball; a mat having a color contrasting with colors of the mat markers, the putter marker and the ball; a camera for photographing the mat markers, the ball, and the putter marker; a mat detection unit for detecting a position of the mat from an image photographed by the camera; an object detection unit for detecting positions of the putter and the ball in real time; a ball calculation unit for calculating a speed and a moving direction of the ball based on the detected ball; and a pointer calculation unit for calculating a pointer position for a menu selection function necessary for a simulator operation by using coordinates of the detected putter.

Abstract: Disclosed herein are a device and method for sensing a moving ball configured to analyze continuously acquired images of the moving ball and to calculate information about the spin of the moving ball based on the analysis result. It is possible to calculate the spin of the moving ball without providing a specific marker on the ball. In the case in which a logo or a brand mark is present on the ball, or in which dimples or cracks, which are feature portions in an image, are also present on the ball, it is possible to easily, rapidly, and accurately calculate the spin of the moving ball using the same.

Abstract: A golf ball with improved durability is disclosed herein. The golf ball has a mantle layer comprising a blend of ionomers and methyl methacrylate, butadiene, styrene (MBS) with a weight percentage of MBS ranging from 5 to 15 weight percent of the mantle layer.

Abstract: In one aspect, there is provided a toy vehicle that includes a vehicle body, at least one motor and a plurality of wheels. The at least one motor is mounted to the vehicle body, and is sized to have a selected amount of torque. The plurality of wheels includes at least one driven wheel which includes at least one flip-over wheel which has an axis closer to one end of the vehicle than the other end. In an upright orientation the vehicle body extends above the plurality of wheels. The toy vehicle has a centre of gravity that is positioned, such that, application of torque from the at least one motor causes the vehicle body to drive rotation of the vehicle body about the axis of rotation from an inverted orientation over to the upright orientation.

Abstract: A surgical eye model assembly for simulating eye surgery using surgical tools includes a spherical surgical body formed of material which can be readily cut using the surgical tools so as to be representative of an ocular globe. A plurality of suspension arms extend radially outward from the surgical body in proximity to the rear side at circumferentially spaced apart locations about the central axis to suspend the surgical body relative to the a rigid base frame. Elongate strands of resilient material are tensioned about the surgical body to represent muscular strands. A sheet of resilient material surrounds the body and strands to be representative of a conjunctiva layer. Lubricant is provided as a layer about the strands and between the sheet and the body. Resilient material can also form in loosely bonded layers to define additional structures surrounding the body to represent a lens, vascular structures, eyelids, etc.

Abstract: An interlocking disc includes a hub with an inner circular area with an inner thickness and a circular step. A plurality of petals circumferentially spaced apart extend radially outward from the outer area of the hub. Each of the plurality of petals are disposed within a common plane and include a catch on each of side of each petal. The catch is engageable to a circular stop of another interlocking disc to inhibit disassembly.

Abstract: A toy made from a hollow tube configured as a substantially circular toroid with an open center portion and an air gap defined by a segment of arc removed between an input end and an output end of the tube. The tube is shaped such that a ball sized to roll unimpeded through the hollow interior can be maintained in circulation by imparting a small parallel oscillatory motion with a hand when gripped by a user's fingers.

Abstract: A Lynchpin structure may be combined with one or more additional Lynchpin structures to form a compound Lynchpin propulsion structure. Each Lynchpin structure may include six pentangular areas, and one or more of the pentangular areas may include a propulsion device. The propulsion may be used to propel the compound Lynchpin propulsion structure through or over various media, such as through air, across ground, on or underwater, or through or over other media. The propulsion may include avionic propulsion, ground propulsion, hydrodynamic propulsion, or other types of propulsion. A single type of propulsion device may be used within one or more of the pentangular areas, or diverse types of propulsion may be used to provide various navigational performance or multi-mode operation. Each propulsion device may also include a device to direct the propulsion, such as a single or multi-axis gimble or adjustable aerodynamic control surface.

Abstract: A fusible toy bead creating apparatus includes: a table including a first surface and a second surface opposite to the first surface and a receiver. The table has a plurality of penetration holes penetrating from the first surface to the second surface to allow fusible toy beads to be placed on the first surface. The receiver includes a receiving surface arranged to face the first surface of the table and configured to receive the fusible toy beads.

Abstract: A sleeping bag system has the appearance of a stuffed character when not in use as a sleeping bag and includes a torso including a torso compartment therein, a first limb having a first arm compartment therein which is in connection with the torso compartment, a second limb having a second arm compartment therein which is in connection with the torso compartment, at least a third limb having at least a first leg compartment therein which is in connection with the torso compartment. The sleeping bag system further includes an opening in the torso providing access to the torso compartment from outside of the sleeping bag system and an item removably storable in the torso compartment which is adapted to provide stability to the sleeping bag system such that the sleeping bag system can sit upright without support when not in use as a sleeping bag.

Abstract: The subject matter discloses a method operated by a computerized central system comprises receiving information from a plurality of users operating a toy construction set comprises building blocks designed for building a structure, said information represents a building process of said structure; analyzing the information on the building process of said structure; generating a feedback on the building process of said structure; transmitting the feedback to electronic devices of the user building the structure. The subject matter also discloses generating a new model according to a plurality of models received from the plurality of users and a predefined set of rules, the new model is a computerized visual representation of a constructible object.

Abstract: [The present invention is] a dart game apparatus that provides a dart game in which one player successively throws n number of (n=3 or 4) darts D at a dart board 12, having: light sources LS that are disposed around the dart board 12 and emit lights L along the board face of the dart board 12; a plurality of photo-sensors S that are disposed around the dart board 12 at approximately the same height from the dart board 12 in the board thickness direction, and detect the brightness of the lights L emitted from the light sources LS; and a processor that calculates a hit position of a dart D in the dart board 12 based on the brightness of each light. A number of photo-sensors S is n×2.

Abstract: A block may comprise a base comprising a first block side comprising a first side plane and a connective protrusion coupled to the base and extending distally outwardly and substantially perpendicularly from the first side plane. The connective protrusion may comprise a center pillar coupled to the base extending distally outward from the first side plane, a base portion coupled to the center pillar and the base and extending axially and substantially perpendicularly from the center pillar in a first direction, and an overhang portion coupled to the center pillar extending axially and substantially perpendicularly from the center pillar in a second direction opposite the first direction such that there is an overhang space between the first side plane and the overhang portion. The block may further comprise additional connective protrusions, and the connective protrusions of multiple blocks may enable the coupling of such blocks.

Abstract: An air bubble forming apparatus includes a hollow apparatus body and an aerodynamic device. The apparatus body includes a shell, an air inlet, a hollow cavity and a bubble forming member. The bubble forming member includes an air outlet, a bubble fluid dipping portion, and a plurality of bubble apertures arranged around the air outlet. The aerodynamic device includes an elastic diaphragm, and an operating member, operating member connected to the elastic diaphragm. The elastic diaphragm separates the hollow cavity from the outside world. After the bubble fluid dipping portion is wetted with bubble fluid, the operating member is operated to deform the elastic diaphragm, and the air in the hollow cavity is pushed out through the air outlet and the plurality of bubble apertures to form air bubbles in the bubble apertures and to pop out the air bubbles to the outside.

Abstract: An apparatus that simulates a respiratory system for characterizing particle delivery within lungs by an inhaler within lungs is shown and described. The respiratory system simulator comprises a simulated oral cavity to receive an aerosol, a simulated oropharynx cavity, a simulated lung airway system, and a breath simulator. The simulated oral cavity is configured to receive a flow of particles and direct the flow to the simulated oropharynx cavity. The simulated oropharynx cavity is configured to receive a flow from the simulated oral cavity and direct the flow to a simulated trachea cavity. The simulated trachea cavity directs the flow to the simulated lung airway system. The simulated lung airway system comprises a plurality of bronchial airway generations simulating bronchial airway generations of a lung or lungs. The respiratory system simulator may be maintained at or near humidity and temperature levels within a respiratory system.