Abstract: The present invention broadly comprises a sleeve for a dental articulator having upper and lower jaws operatively arranged to simulate a human mouth, the sleeve including an enclosure having a mounting surface and at least one open end, the enclosure arranged to substantially cover and releasably engage the upper or lower jaw of the dental articulator. The sleeve may further include a releasable locking means operatively arranged to releasably secure the sleeve to the upper or lower jaw of the dental articulator. The present invention also broadly comprises a method of mounting a dental model on a dental articulator having upper and lower jaws arranged to simulate a human mouth, the method including the steps of releasably securing a sleeve on the upper or lower jaw of the dental articulator and fixedly securing the dental model to the sleeve. The method may further include the step of removing the sleeve from the upper or lower jaw of the dental articulator.

Abstract: A device suitable for use by children which recycles broken crayons and other materials by melting and molding. A stationary melting pot securely retains the charge material during heating. A housing substantially surrounds the melting pot and an associated mold chamber to isolate young operators from all heated surfaces. The melting pot is charged from outside of the housing by use of a filling port. A remotely operated gate controls the flow from the melting pot to a mold. A door provides access to the mold when open and prevents access to the mold chamber when closed. A warning light glows when a heating element for the melting chamber is energized. Various safety switches interrupt power to the heating element if certain conditions are not met.