Abstract: A baseball practice apparatus comprised of a vertically extending panel having a plurality of selectively operable lights which generate focused light beams directed forward from the panel. A player swings a bat having a light reflecting surface which will intercept and cause the light beams to be reflected back towards the panel. On the panel there is an array of spaced light sensors. One of the light sensors detects the reflected light, and a visual indication is provided of the simulated result of the swing, for example, a "line drive" or a "fly ball". A foregoing visual display is provided in response to which light, or lights, were illuminated to simulate a pitched ball and which sensor sensed reflected light from the bat. A "curve", a "sinker" or other pitch is simulated, by actuating selected lights in a predetermined sequence.

Abstract: Disclosed is a soluble suturing device for an intestine, which includes a suturing receptor, a staple receiver and a suturing presser, each of which is formed of a material to be solubilized by an intestinal juice and shaped in the form of a cylindrical body having an outer diameter insertable into an intestine. The suturing receptor, at its rear end, is provided with a suitable number of receiving seats located circumferentially therein each having a staple-receiving groove and formed of a rigod material, while the staple receiver, at its front end, abuts the rear end of the suturing receptor and is provided with a corresponding number of staple-holding apertures, each arranged for holding a staple at a position corresponding to the staple-receiving groove of the seat. The suturing presser is provided with a staple-urging plate for urging the staple in each of the staple-holding apertures toward the staple-receiving groove.

Abstract: A chess game is provided for play by two, three or four persons played according to the conventional rules of chess as to movement and capturing of pieces, castling, check and checkmate. As in conventional chess, each player possesses an initial force of a king, a queen, two bishops, two knights, two rooks and eight pawns. The game is played on a checkerboard having two hundred eight playing squares arranged in a central playing array of twelve bilaterally arranged rows having twelve squares per row and bordered by four smaller staging arrays, each of the staging arrays having eight bilaterally arranged rows of two squares per row. One of each of the four staging arrays is longitudinally centered on and contiguous with each of the four sides of the central playing array. Two of the four staging arrays have squares of different colors from each other.

Abstract: Audio frequency converter apparatus, in particular for treating subjects suffering from audio-phonatory disorders, the apparatus being suitable for generating, on the basis of an input audio frequency signal, a parametric signal for application via an electro-acoustic transducer to a person being treated.

Abstract: A racket stringing machine comprises a support frame, a tension head assembly, a lateral clamp head and a longitudinal clamp head. Movement of the tension head assembly is controlled by a brake motor which is controlled by the signals transferred from a limit switch. The limit switch is normally pressed by a contact element and released when a string clamp head pivoted on the tension head assembly is spring biassed to pivot away from the clamping frame and a contact element fixed on the string clamp head is separated from the limit switch. The lateral clamp head comprises two lateral clamp arms for clamping the lateral sides of a racket frame to be strung by a pivotal movement accomplished by an actuating block sliding along a rotating bolt. The longitudinal clamp head comprises a clamping sheet with a rack extending downward from the bottom surface for meshing with a sector gear so as to be rotated by a handle in order to clamp the upper surface of the racket frame.

Abstract: A board game for use by a plurality of players for playing a simulated football game which includes a game board having a simulated football field, a playing piece adapted to be placed on the game board for indicating the position of a player on the field, a plurality of decks of cards, each deck of cards being related to a specific type of football play, and each card having thereon the result of a selected football play. The game board is further provided with indicia representing betting areas including means for indicating different possible outcomes of a football play or a series of football plays, the game further including markers indicating a bet has been placed in the betting area on the particular outcome of a football play or a series of football plays.

Abstract: A combined card and board game consisting of over 205 fields of law, legal categories, including legal lexicon, legal terminology and legal processes involving quetions and/or statements and responses. The game includes a board which consists of four pluralities of spaces with indicia which relate to indicia on the cards and spinner and represent legalcategories of law utilizing the alphabet and numerals, a plurality of sets of cards consisting of legal knowledge and information, a rectangular card box, a spinner and gamepieces. The game board is comprised of marked spaces and pathways whereby players move gamepieces in attempt to advance to the winner's/Dean's circle by correct response at his respective turn according to applicants' game rules. The game simulates graduation from law school, receiving an L.L.M., and/or passing the bar and provides an educational, entertaining, teaching, testing and competitive game of chance and legal knowledge.

Abstract: Cushioned baseball bats comprising a semi-rigid support structure and a resilient cushion portion surrounding at least a portion of the support structure are provided. The bats of this invention are of substantial enough weight and rigidity that they can be used in a game substantially similar to conventional baseball or softball, but the bats of this invention are less likely than conventional baseball bats (or bats designed to replace conventional bats) to cause serious injury when they strike a person. The bats of this invention are preferably used with lighter and softer balls so that a game that is substantially similar to conventional baseball or softball may be played with a reduced danger of serious injury.

Abstract: The male tube at one end is provided with a connecting tubular piece adapted to fit into the female tube. The female tube in the connected position of the tubes is provided with a hole for inserting a pin in order to secure the connection of both tubes. The material for forming the tubes may be coated with a thin film of slowly water soluble polymeric material in order to allow a delayed dissolution of the tubes into the intestinal fluid.

Abstract: The compound archery bow assembly includes an inner cam-type compound bow having an elongated riser with handle and arrow window, a pair of flexible limbs with a pair of wheels rotatably secured to the limb tips. A box-shaped bracket is secured to the riser below the handle and extends rearwardly thereof, with a vertical bowstring behind the bracket, a rotatable cam mechanism including a pair of cam lobes secured to each other, rotatably secured in the bracket, wheel cables trained around the wheels and secured to opposite ends of the bowstring, and cam cables extending between the cam lobes and limb tips. The assembly also includes an improved drawcheck with a clicker component releasably secured to either the bracket or cam mechanism, and an activator component secured to the other one of the bracket and cam mechanism.

Abstract: The invention relates to an accessory for firing small arrows which can be releasably attached to a knife handle. The accessory includes two spaced channel members each having a number of pulleys fixed for rotation within each channel. An elastic cord is sheaved about the pulleys and extends between the channel members. An arrow is configured to engage the cord and permit drawing the arrow into a firing position from which the arrow can be fired.

Abstract: A board game apparatus including a pair of dice and from two to eight pieces of play (boxers). The game board playing area is defined as a twelve by twelve grid of perpendicularly intersecting lines of holes. Some or all of the pieces of play (boxers) are entered into play on the game board's playing area by the players. The pieces of play (boxers) move according to the throw of the dice. One die indicates movement along a grid line and the other die indicates movement along another grid line perpendicular to the first grid line. Thus, the pieces of play move along the game board surface following an "L" move pattern. The players position their pieces of play (boxers) according to the game rules, to eliminate opposing pieces of play (boxers) until only one remains. That remaining one is the winner.

Abstract: A game piece formed of a strip of sheet material folded into a packet containing a plurality of overlaying panels. First and second panels of equal dimensions are connected along a common end edge by a perforated line. The second and third panels are separated by a fold line. Two perforated lines are formed on opposite sides of the fold line. Additional perforated lines are formed along the longitudinal edges of the first, second and third panels, as well as the outer end edge of the first panel. The third panel is folded over the second panel and the first panel is folded over the third panel after adhesive has been applied to the peripheral edges adjacent the longitudinal perforations and end perforations on the first panel to secure the first, second and third panels together into a closed form. Tearing of the overlaying perforations enables the first, second and third panels, each of which bears advertising or promotional indicia to be completely separated from each other for individual use.

Abstract: A rebounding net (16) is supported in a portable frame (19). The net (16) includes a rectangular forward end (18) which provides a ball entry/exit way of a certain area through which a ball can move. The net (16) further includes a rearward end (32) which provides a ball-rebounding surface, and the net's forward end is connected to its rearward end by converging sidewalls (24,26,28,30). The sidewalls (24,26,28,30) have a generally trapezoidal-like shape and the net's rearward end (32) has a generally rectangular shape. The net (16) is supported by the frame in such a manner that tension in the net can be adjusted to influence the net's ball rebounding or returning characteristics.

Abstract: An adapter for attaching atrial blades to a sternal spreader comprises an elongated bar having blade attaching means on an oblique surface, and having a heel, hook and adjusting screw on its bottom surface. The heel and the head of the adjusting screw are engageable with the upper surface of a spreader arm, and the hook is engageable with the lower surface thereof. The screw has a wheel formed on it, which is located between the bar and the spreader arm. When this wheel is turned to cause the screw to extend, the hook and heel of the bar and the head of the screw are pressed against the spreader arm, causing the adapter to be firmly secured to the spreader.

Abstract: A game set includes a plurality of individual game articles, with each article including two companion playing pieces. The pieces mate with each other, but not with the pieces of other articles in the set, to form the article. The pieces of each article are separable from each other, for playing a game of seeking to mate the companion pieces of the article. In a preferred embodiment, a signal device is included in each article and is actuated by assembling the playing pieces into the article.

Abstract: A collapsible goal frame having a crossbar, four uprights, two rear crossmembers and four sidemembers. The crossbar is detachable from sockets on the front uprights and pulls apart into three members of equal length and uniform diameter held together by an elastic cord threaded through the members. Uprights and crossmembers consist of telescoping members which are held in extended position by spring buttons. Telescoping members are retracted to collapse the frame. Four hinges join the sidemembers to the rear crossmembers, so that after the telescoping members are retracted, sides fold parallel to rear crossmembers. Lower sidemembers are weighted to add stability.

Abstract: A surgical instrument to aid in suturing a prosthetic valve into a heart annulus, comprises: a manually grippable handle, a holder carried at one end of the handle for releasably holding a prosthetic valve to be pre-loaded thereon, a first ring fixed to the handle and securing thereto one end of a plurality of sutures to be pre-loaded onto the handle with each suture carrying a needle at its opposite end passing through the prosthetic valve when pre-loaded on the handle; and a second ring fixed to the handle for releasably retaining the plurality of sutures each pre-loaded in folded condition on the handle and extending longitudinally thereof. The two rings are located on the handle such that each suture has a length between the prosthetic valve and the needle-carrying end of the suture which is at least twice the length of the suture between the secured one end and the prosthetic valve.

Abstract: A game and method of play are disclosed. The game consists of a playing field and at least two groups of playing markers, the groups being distinguishable from one another. Each playing marker has memory indicia thereon to mnemonically signify a continuous, sequential order by which the markers are moved. Players move their markers around the playing field one at a time, adhering to the order described above. A player cannot deviate from the specified order, and must move a marker with each turn. The object of the game is for one player to arrange his markers in a line on the playing field while preventing an opponent from doing so. Points are awarded when a player arranges his markers in a line.

Abstract: A tennis ball throwing machine which comprises a motor secured to a frame board, the output end of the motor shaft having a gear wheel securely mounted thereon, first and second transmission shaft respectively fixed to a gear wheel at one end thereof and engaged with the gear wheel of the motor, a bat pivotally attached to the first transmission shaft, one end of the bat being a hitting portion, and the other end thereof being attached to a tension spring, a cam pivoted on the second transmission shaft, a ball guiding groove being pivoted on a supporting shaft and having a portion thereof in contact with the cam to move upward, downward, leftward and rightward, a tension spring at the bottom end of the ball guide groove.