Abstract: A system for molding a jointed linkage support system with joints that allow movement and bending in many directions and degrees of freedom. A chain-like linkage system made up of a series of joints is molded in a single step from materials having different melting temperatures in a series of alternating communicating mold cavities. The jointed linkage support system emerges from the mold fully assembled. An electrical switch may be provided within one of the joints between sleeves and rods whereby movement of the rod relative to the sleeve actuates the switch.

Abstract: The invention provides a method of injection molding a part having an undercut region and a method of assembling a jointed structure from several parts. A two-part mold has a common cavity with part of the cavity in each mold part. A combined pin-in-a-sleeve extends into the cavity in one of the mold parts in order to form a bore in a part to be molded in that cavity. The pin provides a portion shaped to form a first undercut region in the bore. A second pin extends into the cavity in the other of the two mold parts. The two pins are aligned to form a single bore in the molded part while in the cavity. The second pin also has a portion shaped to form a second undercut region in the bore. After an injection molded part is made, the mold opens a limited and discrete distance to allow the molded part to be released from the hold of the mold cavity. Then, the mold opens fully for the continuation of a multi-step operation to pull the pins out of the undercut regions.

Abstract: A toy figure having multiple articulating limbs connected to the torso by pivot joints that are molded in a vertical injection molding step that forms and pivotally interconnects, in situ, one member of the pivot joint to a second, pre-formed member of the pivot joint.

Abstract: A toy figure having multiple articulating limbs connected to the torso by pivot joints that are molded in a vertical injection molding step that forms and pivotally interconnects, in situ, one member of the pivot joint to a second, pre-formed member of the pivot joint.

Abstract: A method of assembling a jointed structure from several parts is provided. At least two discrete parts having ends that cooperate to form a movable joint between the parts are placed in a groove formed in a plate. The parts are prevented from being displaced out of the groove when pressure is applied to at least one end of the groove to force the cooperating ends of the parts together to form joints which link the parts. The jointed linkage can then be removed from the plate as an assembled structure.

Abstract: A toy figure having multiple articulating limbs connected to the torso by pivot joints that are molded in a vertical injection molding step that forms and pivotally interconnects, in situ, one member of the pivot joint to a second, pre-formed member of the pivot joint.

Abstract: A method of injection molding a part having two undercut regions using a two-part mold. A combined pin-in-a-sleeve extends into the cavity in each of the mold parts in order to form a bore in a part to be molded in that cavity. Each pin provides a portion shaped to form an undercut region in the bore. The pins abut each other. After an injection molded part is made, the mold opens a limited and discrete distance to allow the molded part to be released from the hold of the mold cavity. Then, the mold opens fully for the continuation of a multi-step operation to pull the pins out of the undercut regions.

Abstract: A molded product is made comprising a low-density product having an impermeable surface. The impermeable surface integral with the low density interior is suitable for receiving various types of brightly colored finishes. It is also contemplated that a non-porous plastic film may be molded in place on the surface of the molded product.

Abstract: A support system is made up of a plurality of alternating rods and sleeves. Each sleeve forms a pair of sockets configured to movably receive and retain one of the first or second ends of adjacent rods, forming a bendable linkage. A cover is provided to surround the linkage, and a coupler is provided to cover the linkage. An electrical switch may be provided within one of the joints between sleeves and rods whereby movement of the rod relative to the sleeve actuates the switch.

Abstract: A toy figure having multiple articulating limbs connected to the torso by pivot joints that are molded in a vertical injection molding step that forms and pivotally interconnects, in situ one member of the pivot joint to a second, pre-formed member of the pivot joint.

Abstract: A toy figure having multiple articulating limbs connected to the torso by pivot joints that are molded in a vertical injection molding step that forms and pivotally interconnects, in situ, one member of the pivot joint to a second, pre-formed member of the pivot joint.

Abstract: A method of molding, from porous material, a low-density product having an impermeable surface. A mold is provided which has a cavity, the outline of which defines the outline of the product. The starting material is a flat sheet of plastic foam. The first step of the process, in some cases, is a pre-heating procedure, which softens the material. Then, from this sheet there is stamped a blank having substantially the outline of the desired product, which is then inserted into the mold cavity. The mold is then heated with the blank therein to form the blank permanently into the desired product, after which the mold is quenched in cold water with the product still inside. The product is subsequently removed from the mold and frozen. The result of this molding method is a low-density product having an impermeable surface integral with the foam interior which is suitable for receiving various types of brightly colored finished.

Abstract: Thermosetting polymer compositions for forming molded products having a soft, resiliently deformable skin are provided. The polymer resin compositions include polyvinylchloride, phthalic acid ester, a heat stabilizing agent and a heat resistance agent and have physical properties that resemble latex-containing compositions.

Abstract: Advertisement at the point of purchase is presented by a box containing a rotary device which displays graphic material on each step of the device. The rotary device is mounted in a box having a lens focused on the graphic material. A very low cost is achieved by a plastic plate shaped to form two cantilever springs, one of the cantilever springs has a tooth which steps the rotary drive into a viewing position, and the other of the cantilever springs has a tooth which stops the rotary device in a viewing position.

Abstract: A simple, general purpose temporary dyeing process for coloring plastic or plastic fabric is disclosed. A colorless, but pH sensitive indicator solution is applied to a plastic material, such as the hair of a fashion doll, without changing the hair color. A developer solution of a specific pH range is subsequently applied to the doll hair, thereby causing the color of the hair to change. As the hair dries and the developer solution evaporates, the hair returns to its original color.

Abstract: A method of molding, from porous material, a low-density product having an impermeable surface. A mold is provided, which has a cavity, the outline of which defines the outline of the product. The starting material is a flat sheet of plastic foam. The first step of the process, in some cases, is a pre-heating procedure, which softens the material. Then, from this sheet there is stamped a blank having substantially the outline of the desired product, which is then inserted into the mold cavity. The mold is then heated with the blank therein to form the blank permanently into the desired product, after which the mold is quenched in cold water with the product still inside. The product is subsequently removed from the mold and frozen. The result of this molding method is a low-density product having an impermeable surface integral with the foam interior which is suitable for receiving various types of brightly colored finished.

Abstract: A toy simulates an arcade game. A compartment at the top of a box has a transparent bottom and contains game pieces that may be manipulated from a control panel at a front of a box. A mirror in the box reflects the image of the game pieces as seen through the transparent bottom. To play the game, a user looks at the reflection image of the game pieces while he manipulates the controls at the front of the box. Here, the game is a pinball machine in which the transparent bottom has a plurality of upstanding pegs which divert balls into random paths. Any balls which are caught by a manipulation of the controls are diverted into one scoring path. Any balls which are not so caught fall into another scoring path. The invention provides for releasing a selected number of objects at one time to change the required skill level to play. Also, by changing the direction in which the transparent bottom slants, different games maybe provided.