Abstract: The basic racket frame is comprised of an oval head, a yoke merging into a throat and a solid or a hollow shaft which is formed from a single length of collimated filaments preferably graphite fibers, known as a roving impregnated with a thermosetting resin. To form the racket frame, the single length of roving is wound up the handle, around the entire circumference of the head and back down the handle. This winding technique forms a hollow handle to which is attached a hollow, removably interfitting grip portion. This grip portion is then fitted with a cover consisting of stretchable, cylindric bands. The racket frame also includes a throat piece comprised of a plastic insert covered on opposite faces by a mat of filaments. The filaments in this mat are positioned parallel to the filaments in the handle.

Abstract: The present invention relates to an improvement in racket frames reinforced with a honeycomb, characterized in that it comprises filling up at least one selected alveolus of the said honeycomb with a substance having a density of at least 2 kg/dm3.

Abstract: A shell forming the walls of a bat comprising a striking portion, an intermediate portion and a handle portion. The shell is filled with structural foam. The striking portion is closed by a weighted cap and the handle portion is closed by a knob. The cap and knob are secured to the shell by stud or by a connecting rod. The stud receiving device has a plurality of fins which extend outwardly therefrom. The fins fit in corresponding slots formed in either end of the bat. The stud receiving device is internally threaded as are the cap and knob. A threaded stud is then used to secure the cap and knob to their respective ends. The shell is over-wrapped with woven or braided composite-type materials, such as graphite, KEVLAR, glass and boron.

Abstract: A game apparatus representing space travel between the earth and moon. The game apparatus comprises a game board having a representation of the earth and moon wherein a plurality of concentric orbits are positioned about the earth and one orbit is positioned about the moon. A plurality of movement paths are provided that connect the earth and its closest orbit, the earth orbits themselves and the moon and its orbit. Movement paths are utilized that connect the outer earth orbit to the moon orbit. The game also includes certain orbit escape spaces and orbit change spaces that allow players to move from one movement path to another. A chance device, instruction cards and player pieces are also provided.

Abstract: A board game apparatus is disclosed having a board with marked spaces or areas constituting a path of progression around the board. The apparatus includes token money as a medium or indicia of payment. Movement of playing pieces is by chance. Spaces or areas on the board provide instructions for further movement or the mode of exchange of tokens between or among the players. Cards are provided having selected values and are used by the players to challenge and to play competitively with each other. Strategy of play depends upon position on the board and the cards available to the players. Payments from one player to another may result from winning or losing a challenge situation or by chance as dictated by the indicia on a player's position on the board. The game involves a combination of chance or luck and skill in managing the cards drawn.

Abstract: In order to permit a metal-framed racquet to be safely used as a squash racquet, the radially outer surface of the metal frame is provided with two grooves disposed symmetrically one on each side of the median plane of the frame. Each groove has a respective relatively soft, clear plastics bumper member locked therein, the bumper members covering a substantial proportion of the radially outer surface of the frame. The bumper members also serve to trap the heads of stringing grommets in a further groove disposed, in the median plane of the frame, between the grooves in which the bumper strips are locked.

Abstract: A device for stringing tennis rackets and the like, and for tightening sagging strings, which, in the preferred embodiment comprises three rows of rollers clamped around two adjacent strings inside the racket frame. Each row of rollers is attached to the end of a lever. The levers are rockingly linked together so that the strings can be gripped and released between the rollers as desired. The rollers are mechanically coupled to each other by way of a series of intermeshing spur gears. A crank, attached to the gears, drives the rollers and allows adjacent rollers to rotate in opposite directions. Thus, two strings in gripping engagement with the three rows of rollers are pulled in opposite directions as the crank is turned.

Abstract: A racket-stringing machine equipped with tensioning apparatus featuring a one-way clutch which eliminates the need to pull tension more than once per reach of string on the racket. The tensioning apparatus consists of a pair of grippers which grip and hold the strings. The apparatus further has a cylindrical member with a lever to which are attached weights. The clutch and the cylindrical member are attached by way of a coiled spring. The coiled spring is wrapped around a hub on the clutch and attached, at its end, to the cylindrical member. This construction allows the clutch and cylindrical member to rotate together in one direction while at the same time allowing only the clutch to rotate in the opposite direction.

Abstract: The board game consists of a central, geometrically shaped goal area with rectangular playing surfaces extending from each side of the goal area. A single tortuous path extends outwardly from the center along each of the rectangular playing surfaces. The shapes of the spaces that comprise the tortuous path are identical to the shape of the goal area. The game also utilizes multi-sided dice having faces which correspond in shape to the shape of the goal area. The playing pieces used in the game are similarly shaped. The game board is hingedly constructed so that when not in use, it can be folded into a three-dimensional box that is then used to store the playing pieces and dice. The game also includes a cover for the folded box. The cover is used during the play of the game to shake and roll the dice.

Abstract: A device for aligning strings in a grid of tennis racket comprised of a base having a peripheral groove for receiving the frame of the racket. The base has a plurality of posts arranged and shaped to intersect the spaces between strings. A cover is hinged to the base and acts as a press to force the tennis racket down on the posts, causing strings to become aligned.

Abstract: The game board features a display disk situated between upper and lower layers. The display disk has a plurality of radial columns of information which are rotated under display windows in the upper layer. A removable drive hub engages the disk through a central recess in the upper layer. Channel sectors in the lower layer limit the rotation of the hub and disk. The upper and lower layers each consist of two sections hingedly joined together. Folding of the game board is accomplished by aligning the fold line on the disk with the hinge line between the two game board sections.

Abstract: Game apparatus comprises a game board together with a plurality of playing pieces each coded to indicate its attribute and value. Three playing pieces of different attributes and different values are stacked to comprise a playing unit. Two players compare the attributes and values of the bottom-most piece of their playing units successively in a number of plays in order to determine the outcome of the game. The game comprises three different groups of attributes having strengths that allow a first group to be stronger than a second, the second group to be stronger than a thrid and the third group to be stronger than the first. In addition, each of the groups of attributes contains three hierarchically ranked groups of different values.

Abstract: This invention relates to a hockey stick comprised of a shaft and blade which simulates the principal characteristics of a wooden hockey stick including a blade in which a wear resistant core is provided wherein the area subject to wear are exposed and areas subject to impact are covered with a resin or plastic, and further provided with apertures in non-impact areas to increase the striking area and simulate the weight and weight distribution characteristics of a wooden hockey stick. The core is comprised of two substantially vertical surfaces and a base portion. The base portion of the core extends horizontally beyond an imaginary extension of the substantially vertical surfaces.

Abstract: A recreational device 10 for impelling an object comprises a generally upright shaft 12 having a lower end 20 and an intermediate part 22; a lever arm 14 having a heel portion 40 and an upper actuation portion 42 pivotally connected to the lower end 20 of the shaft 12; a stabilizing link 24 pivotally connected to the intermediate part 22 of the shaft 12, and a linkage assembly 32 for urging the object forwardly in response to downward movement of the shaft 12, the reaction of the heel portion 40 against a surface, and the forwardly and downwardly swinging of the lever arm 14.

Abstract: A game which uses two (2) sets of player pieces, one set for each player. The game is played with two (2) players, each opposing the other. The playing pieces are arranged on a playing surface, or game board, which is comprised of evenly spaced checkered squares thereon. Each player has the same number of playing pieces evenly distributed on a portion of half the board and facing the player tokens of the opposite party. The object of the game is to capture the player tokens of the other party by either eliminating and taking the player token of the other party or completely surrounding and immobilizing it. A player can capture an opponent's token by placing two of his tokens on the same square that one of his opponent's tokens is located. A player can immobilize an opponent's token by placing two tokens on all squares adjacent to the square on which the opponent's token is located. The games includes dice for indicating the advancement of player tokens in a selected direction.

Abstract: A travel game arrangement includes a gameboard consisting of a plurality of polygonal plate-shaped gameboard elements which are separate from one another for storage purposes, but which can be assembled into a gameboard and interconnected by complementary male and female formations arranged at the corners of the elements. The formations have such shapes that the elements can be oriented with one or the other of its major playing surface regions facing upwardly, and yet be interconnected by the formations.

Abstract: A stringing tool for a racket, such as a tennis racket for example, provided with individual strings for the net-like interlacing stringing covering the open area of the racket frame, each individual string being anchored at both ends, for example, by a collapsible anchoring clip disposed in a stringing aperture through the racket frame. The stringing tool comprises a pair of jaws for grasping the end of the string projecting beyond the racket frame, the jaws being mounted on a slide coupled to a second slide movable by lever action. The coupling between the two slides has an adjustable releasable mechanism operable to disconnect one slide from the other upon exerting a pull of a pre-determined force on the string. The stringing tool is preferably further provided with a clipper for cutting off the portion of the string projecting from the side of the racket frame after the string has been stretched taut from one side of the frame to the other and securely anchored by the clips in the frame stringing holes.

Abstract: A football type strategy game for two players having a playing surface and movable pieces made up of an offensive unit which plays in turn against opponent's defensive unit. The offensive unit has a Runner piece and Guard pieces and the defensive unit has Tackle pieces. The playing surface has two sets of spaces and a network of routeways connecting one set of spaces to each other and surrounding the other set of spaces. The Runner moves through certain controlled routeways. Guards and Tackles move along both sets of spaces and control routeways surrounding their resting spaces. One set of spaces has three positions in each space that Guards and Tackles rest on: a central position which allows a piece total control of surrounding routeways and movement to another space and two secondary positions which restrict a piece from further movement and diminish control of routeways surrounding that space. Each routeway can be subject to either Guard and/or Tackle control.

Abstract: A tennis racket is provided in which the longitudinal axis of the shaft of the racket forms respective complementary angles of between 40.degree. and 50.degree. with the major axis and the minor axis of the racket head. The head of the racket is oval in shape and the head's geometric center is approximately aligned with the longitudinal axis of the shaft and handle so as to better position the sweet spot of the racket. The racket also includes an apertured rib which extends between the handle and the head.

Abstract: A multi-tier board game arrangement is disclosed including a game board with a playing surface having a center and a perimeter, the playing surface including a plurality of segmented endless paths and interconnecting paths therebetween. Each of the segmented endless paths is generally concentric with the center of the playing surface, with the endless paths spaced radially therefrom and preferably in a regular geometric shape, such as a regular hexagon with the paths being generally centered one with another. A plurality of interconnecting or transverse paths interconnect adjacent endless paths, with a plurality of segmented home bases adjacent the center of the playing surface and connected to the endless path nearest the center. A plurality of sets of playing pieces are also included in the game board arrangement, such playing pieces each having a designated permitted movement, such as movement only in a clockwise or a counter-clockwise direction, or in both directions.