Abstract: There is disclosed an electrothermal color-varying device inducing color change in a thermally color-varying layer by heat generation in an electrothermal heat-generating member, in which the heat-generating member is composed of a non-metallic member having a positive temperature coefficient on the electric resistance at least in a temperature range 25.degree. C. to 65.degree. C. and a particular volume resistivity, is adapted to generate heat by the application of a low voltage and is capable of self-control of the saturated heating temperature at an arbitrary temperature within a range of 25.degree. C. to 65.degree. C., whereby improved safety is achieved without the danger of overheating or current leakage. Also there are disclosed toys utilizing such color-varying device.

Abstract: An automatic passive interactive tracking device is disclosed which provides for the detection of intruders with a single quadruplex stationary passive infrared sensor covering a relatively wide field of view. Alternatively, two dual sensors may be incorporated. The stationary sensor or sensors provides a signal to a microcontroller, which drives a stepper motor to rotate additional sensors with narrower fields of view to more precisely determine the exact bearing of the intruder. By incorporating appropriate analog to digital conversion and algorithms in the microcontroller, approximate range may also be determined. When the intruder has been verified by all of the sensors, a camera and/or light is activated to record the intruder. A number of the tracking devices may be linked together to cover a larger area, and may provide signals to a remotely located monitor and/or security post.

Abstract: A heat activated amusement device is stimulated, by the transfer of thermal energy from a person's body or a heated object, to reveal by color differentiation a hidden message or visual image.

Abstract: A water actuated toy kitchen set includes a housing having an interior cavity therein supported by a support base. A sink includes a depressible faucet together with a sink well and drain coupling. A dishwasher cavity supports a slidable dishwasher tray, a spray head, a return drain and a pivotable dishwasher door having a transparent window therein. A pressure responsive bellows is operatively coupled to the dishwasher spray head and controls the vertical position of one or more simulated toast slices within a toaster which appears to rest upon the counter top of the kitchen set. A battery-operated pump and pump motor is operatively coupled to a switch mechanism actuated by depressing the faucet to pump water under pressure through the faucet as well as through the dishwasher spray head. Recirculating paths are provided for the pump water to maintain a continuous recycled water flow.

Abstract: A battery operated animated button is disclosed which is worn by a user and includes a display portion which moves and may selectively display a hidden message or the like. The button includes a circuit board activated by batteries, with a wire of a titanium-alloy material activated by the circuit board to contract to move the display portion.

Abstract: A battery operated animated greeting card is disclosed which includes a display portion which is animated when the card is opened. The card includes a circuit board activated by batteries, with a wire of a titanium-alloy material activated by the circuit board to contract to move a portion of the display portion.

Abstract: A doll including a body, the body being shaped to depict the body of a mermaid, a head, the body and head having generally hollow interiors, apparatus positioned within the body and the head for providing sound, and apparatus for activating the apparatus for providing sound.

Abstract: An toy set having at least one section which bears a color memory dye of an electron-supplying organic coloring compound, an electron accepting compound and an ester. The color memory dye assumes a first color below t1 (.degree.C.) and a second color above t2 (.degree.C.), wherein t2>t1, 0.ltoreq.t1, t2.ltoreq.50.degree. C. and 5.ltoreq.t2-t1.ltoreq.35. Both the first and second colors can be displayed between t1 and t2. For the purpose of determining the proper temperature range for a color characteristic, temperature-sensitive visual indicators are provided.

Abstract: A temperature activated toy vehicle includes a vehicle body within which a temperature responsive spring is supported. One or more vehicle body parts are movably supported within the vehicle body and are movable between alternate positions to provide alternate configurations of the vehicle. The temperature responsive spring is coupled to the movable body portions to provide alternative configurations of the toy vehicle in response to spring temperature.

Abstract: An animated fashion doll including individually articulated arms, legs and head, each separately controlled by a separate thermal motor mounted within the doll torso and controlled from a base-mounted programmable controller which is in turn responsive to remote external stimulation.

Abstract: A color memory toy set has a color memory toy with surface, at least one portion of the surface being provided with a color memory temperature-sensitive color changing layer colored with a coloring material including a color memory temperature-sensitive dye exhibiting hysteresis characteristics in response to temperature change between a colored state and a colorless state or between a color (I) state and a color (II) state. The toy set also includes a writing pen for either causing an image to appear or disappear on the color memory temperature-sensitive layer by drawing the image on the layer to change the color state of the drawn portion into a first state, or for causing an image to appear or disappear on the color memory temperature-sensitive layer by drawing the image on the layer to change the color state of the drawn portion to a second state.

Abstract: Stuffed toy used as ornaments, mascots and the like in which a filler is sealed into a bag-like body comprising a laminate wherein a pliable sheet having a far infrared radiation layer on one surface thereof is superposed to an inner side of a cover sheet with the far infrared radiation layer faced to the side of the cover sheet.

Abstract: A shaped object that fits into the palm of the hand to give a pleasurable tactile sensation is disclosed. The tactile sensation is created by a unique combination of resistant and pliable sections in the object.

Abstract: A toy vehicle spray painted with paint containing thermochromic material which changes color as the temperature of the vehicle varies. Selected portions of the toy vehicle may be painted with the thermochromic material to provide a variety of patterns, designs, numbers, letters or other indicia which change color in response to temperature variations. In addition, different portions of the toy vehicle may be painted with different paints containing different color thermochromic materials.

Abstract: A realistic hatching of a dinosaur occurs from an egg-like storage container. A transluscent egg sheel includes a series of crack lines, which forms weakened fault lines on the surface of the eggshell. A compressed sponge dinosaur is located within the eggshell. Opening at the ends and/or sides of the eggshell allow water to enter the shell when the egg is placed in hot water of a preferred temperature of 50.degree.-60.degree. C. The water entering the shell, after approximately 5 to 10 minutes, causes the compressed sponge dinosaur to expand and break through the eggshell at random points on the shell, preferably along the molded crack lines of lesser thickness than the remainder of the eggshell. The rupturing of the shell occurs at its weakest points, as affected by the depth of the preformed cracks in the shell as well as the portions of the shell which have dissolved due to the exposure to hot water.

Abstract: A Mexican jumping bean toy comprising a ring which incorporates a Mexican jumping bean. The ring is constructed so that even when the caterpillar inside the Mexican jumping bean is in a dormant stage, heat and/or light will reach the bean to reactivate the caterpillar. The ring may further be structured to allow movement of the container housing the bean as the bean tosses about.

Abstract: A doll has a doll element, a plurality of sensors which sense different parameters of an environment in the vicinity of the doll, and an electronic device which forms, in response to sensing of at least parameter by the sensors, an image of solid expanding and contracting heart in the doll element.

Abstract: The invention relates to a doll equipped with a voice or sub-assembly supplied by an electric battery and adapted to emit sounds such as those accompanying the tears of a baby. This doll comprises in addition an infra-red radiation detector incorporaed close to one of the cheeks of the doll so as to be sensitive to the heat radiated by a child placed in the immediate proximity of this cheek. This detector is associated with exploitation means so that any emission of sounds by the doll is neutralized as soon as the heat power received by the detector exceeds a predetermined threshold.

Abstract: A toy construction having a toy element which is preferably embodied in a toy character figure, and a liquid crystal identification element on the toy element. The identification element is operative by the application of a small amount of heat thereto to change it from a non-displaying condition wherein an identifying image thereon is imperceptible and a displaying condition wherein the image is clearly visible. Hence, the identity of the character figure is normally concealed but can be readily revealed by a child when desired.

Abstract: A doll having a cavity adjacent an inner chest wall of the doll. A solenoid within the cavity is repetitively actuated by a pulse generator within the doll to cause the plunger of the solenoid to strike the inner chest wall, causing sound and vibration which simulate a heartbeat. In another embodiment, a temperature sensor is mounted on a surface portion of the doll to control the pulse rate of the pulse generator.

Abstract: A musical instrument that produces whistle-type tones responsive to the impingement of sunlight or other source of electromagnetic radiation upon one or more radiation-absorbent porous-to-air, generally disc-shaped generator member or members disposed interiorly and in the lower half of a vertically oriented transparent or partially transparent tube with angled open ends. The generator member or members may be in the form of a wire mesh or gauze. In a preferred embodiment, Fresnel lenses are employed to focus sunlight on the generators contained within a plurality of tubes of differing lengths that are grouped together to form a musical instrument suitable for display in public places for the entertainment and scientific edification of the public.