Abstract: A rag-type doll is provided with a hollow body cavity accessible by means of a zipper-closed opening located in the front of the doll. A simulated rib cage is located in the upper portion of the body cavity and simulated, stuffed replicas of the major body organs are located within the cavity. The various organs are located in their approximately correct position within the body cavity and secured to the body cavity and/or each other by means of snap fasteners or the like. The organs are completely removable from the body cavity for instructional purposes. A small bone is also removably located in a pocket in one arm for instructional purposes.

Abstract: A game apparatus for use in playing a game which includes a plurality of distinct playing pieces, a game board and dice for determining by chance which pieces are available to be played and where on the game board they may be played.

Abstract: A cannula assembly for intra-aortic balloon devices and the like comprising a Y-connector having a tube secured thereto with an inner diameter which is constant or which increases in diameter at the proximal end. Said tube is of a laminated construction in which the inner tubular member has a low friction characteristic while the outer tubular member provides the supporting strength for the laminated tubular construction.A positioning ring is permanently secured to the cannula a spaced distance from its distal end to limit the extent to which the cannula is inserted into an artery through the arterial wall. The proper length of the penetration into the artery is controlled by cutting off a portion of the distal end sufficient to prevent the cannula from being extended through the opposite arterial wall, for example. The ring is preferably a split ring to facilitate cutting of the cannula to remove the cannula from the balloon and balloon catheter.

Abstract: A color demonstration and teaching device for illustrating the reflective and absorptive characteristics of substantially flat opaque objects of various configurations and colors demountably positioned on an opaque planar screen having clearly defined red, green, blue, and yellow areas under the influence of illumination from red, green, white, blue and yellow light sources having individual continuously variable light intensity control.

Abstract: An archery trainer and exercise device includes a gripping handle, an elastic cord connected to the gripping handle and a sighting rod extending from the gripping handle to permit a student archer to learn proper bow hand position and sighting while strengthening the particular muscles required for archery without the necessity for using an actual bow.

Abstract: Game apparatus including a board and playing cards in which the board forms a grid of squares with the four sides of each square being identified by a different color and with the colors so arranged that the same color is not employed to identify contiguous sides of a square. Side marker elements are used to establish and define the sides of squares, as determined by the play of cards having corresponding colors. The establishment of the last or fourth side of any square establishes a score for the player making the play.

Abstract: A knee joint for the leg of an anthropomorphic dummy of the type used in vehicle crash testing comprises a femur member including a disk portion with a widened rim and a central axial opening, a tibia member, at least one first joint member pivotably attached to the femur member adjacent the central axial opening and including a slide track thereon with a stop surface at the forward end thereof, friction surfaces on the first joint member and disk portion just outside the central axial opening, adjustment apparatus extending through the central axial opening effective to adjust the axial force and thus the friction force between the friction surfaces, at least one second joint member fixed to the tibia member slidably attached to the slide track of the first joint member for sliding movement toward and away from the stop surface in a direction substantially perpendicular to the tibia member and at least one resilient member disposed between the first and second joint member and having a pair of opposing surfa

Abstract: A therapist's patient evaluation and training device and more particularly such a device for evaluating disorders of brain damaged patients and of patients who have suffered trauma to or disease of the central nervous system and for aiding such patients in obtaining confidence to overcome such deficiencies to the utmost of their respective residuary capacities.

Abstract: The disclosed educational devices comprise self-adhering members, to which a pressure sensitive adhesive material is applied, on the outside of at least a portion of each member. In one embodiment, each educational device comprises an elongated stick, rod or tube which is sufficiently rigid to be self-supporting. A knob or body of the adhesive material is mounted on at least one end of such stick or the like. Preferably, knobs of the adhesive material are mounted on both ends. The sticks may be adhered to one another and also to supporting surfaces, to produce letters, symbols, figures, geometric designs, and many types of artistic representations.

Abstract: A training toy for helping children learn how to lace their shoes and also to enhance or improve their fine motor skill (eye/hand coordination). The shoe-configured toy includes a series of adjustable diameter eyelets disposed upon the forward slope of the toy and an open or hollowed out central area for storage and ease in use. The toy is mounted on wheels, and the training shoe string can also be used to pull the toy about on its wheels. The diameter adjustment system for the eyelets includes a set of longitudinally slidable plates with different diameter eyelet openings which can be moved into the eyelet areas to alter the effective diameter of the eyelets. An alternate system (FIG. 5) includes a coiled spring element whose outer end is moved in and out to change its effective diameter.

Abstract: The invention relates to a game of skill which uses a board and a deck of special cards. Each card is unique with regard to its selection of one of each of three different attributes. The board preferably has a representation of each card. In one embodiment the attributes are hair color, figures and characteristics of a human. In another embodiment the attributes are groups of different numerical characters, namely a group consisting of 1 and 2, a second group consisting of 3 through 5, and a third group consisting of 6 through 9. All but one of the players compete against the others to decide which unrevealed card has been selected by the one player from clues given by indicating on the board, or otherwise, how many attributes other cards have in common with the selected one.

Abstract: An amusement device useful in spelling education includes a base structure having an upper playing board with a plurality of openings arranged in a matrix of rows and columns. A removable plug is provided for each of the openings and each plug is shaped to seat within an opening and includes a handle to facilitate manual withdrawal and replacement of the plug. A disk is mounted for rotation under the playing board with an upper surface viewable through the matrix of openings when the plugs are withdrawn. The upper surface of the disk is provided with a plurality of matrices rows and columns of alphabetic characters, and each matrix is positioned to align the characters below the openings in the playing board for viewing when the disk is indexed into any of several rotative indexing positions.

Abstract: A device to simulate the rolling of a hypothetical wheel along a path is provided. The device includes a wheel sector mounted to one end of a rotor. A drive is provided for rotating the rotor in one direction and the sector in the opposite direction so that the sector remains substantially tangent to a line segment. The wheel sector is driven by a pulley the diameter of which is one-half that of a drive pulley rotated with the rotor.

Abstract: An apparatus for demonstrating magnetic force comprises a plurality of disc-shaped rotors angularly displaced from each other on a common shaft and a number of magnets equispaced along the rims of the rotors. Stationary field magnets encircle the rotors in close proximity to the rotor magnets with like-poles of the rotor magnets and the field magnets facing each other. A high permeance magnetic shield is located in the air gap between each field magnet and the rotor to block opposing magnetic fluxes. Magnetic attraction between the rotor magnets and field magnets tend to rotate the rotor. In one embodiment, the shield at each field magnet is mounted on a pivot and is moved out of the air gap by arms attached to the rotor. The rotor magnets are first attracted to the magnetic shield, and, as a corresponding rotor and field magnet approach each other during rotation of the rotor, one of the arms causes the shield to pivot out of the gap to expose the rotor magnet to the field magnet.

Abstract: A method for enhancing bimanual dexterity of a person having a dominant arm and hand and a nondominant arm and hand which comprises having the person participate in an athletic exercise wherein a bouncing ball is projected toward the person equipped in each hand with an implement for striking the ball and returning it in the direction from which it was projected, the implement employed in the nondominant hand having substantially better physical characteristics for striking the ball than the implement employed in the dominant hand. This is useful in physical therapy for persons handicapped in one arm or otherwise not able to use that arm with normal facility; and it is also useful to provide the normal individual having strength and skill with one arm a method of increasing the strength and skill of the other arm.

Abstract: A competitive game apparatus comprised of a game board having a playing surface with a plurality of intersecting playing paths on which playing pieces may be positioned. Two or more players are each provided with a set of the playing pieces which are distinguishable from the playing pieces of the other player by indicia, as for example the color of the playing pieces. The players alternate in playing pieces on the paths, with each player attempting to extend a continuous strip of his or her player pieces while attempting to block the further extension of the strips of his opponents. A timer may be provided with each player required to complete his or her turn in a preestablished time period. This imposes a tempo on the play. Particularly when the game is played at a very fast tempo, the playing pieces already on the board tend to be inadvertently displaced, and it is desirable that the board and/or the playing pieces be constructed to detachably maintain the pieces where they are placed on the surface.

Abstract: Disclosed is a game including a projectile generally saucer-shaped with a portion cut out, defining a main body portion and two leg portions. The projectile may easily be adapted for grasping by the extension of the legs into a flattened circular area which may be defined by a raised ring to prevent slippage of the grasping fingers. The projectile is designed for use in the game wherein the projectile is directed and thrust towards a scoring stake which functions as a target for the projectile. The objective of the game is quite similar to horseshoes, in attempting to ring the stake with the projectile.

Abstract: A magnetic tracing stand capable of being illuminated by various sources of battery operated lights, such as flashlights, lanterns, and by household light fixtures, consisting of a magnetically attractable surfaced base, a rigid, adjustably angled transparent sheet that is removably and reversibly fastened to the front of the base leaving open space over a major portion of the base, with magnetic and fastening means, to accommodate and utilize various sources of light.

Abstract: A dynamic parachute four-line release simulator device which allows aircren to practice the steps necessary to assure a safe parachute descent and landing following emergency aircraft egress. The device is suspended at a desired height adjacent a raised platform, and is constructed of a cross-braced metal ring having parachute suspension lines connected thereto via bungee cords and eye bolts; a parachute riser assembly, which serves as an attachment point for aircrewmen trainees, is connected to the suspension lines via metal connector links.

Abstract: A device for simulating catheterization in a body channel of a patient comprising, a catheter having an elongated shaft, an inflation balloon on the shaft, and an inflation lumen extending along the shaft and communicating with the balloon. The device has a sleeve of flexible material defining a cavity to receive the portion of the shaft containing the balloon, with the sleeve having a sufficiently small width such that the balloon contacts walls of the sleeve when inflated. The sleeve has a line of weakness which ruptures when the balloon is sufficiently inflated unless relieved of pressure prior to rupture of the sleeve.