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US 5,346,656 AGranted
Process for reclaiming scraps of crayon
OwnerGrace Shafirinventor
Life of this patent
Estimating the term…
Abstract
A new crayon is made by loading a charge of crayon scraps into a non-metallic cylindrical mold that is coated internally with a vegetable oil release agent. The loaded mold is then placed in a domestic microwave oven and the charge of crayon scraps is heated by microwave energy until the charge becomes a molten mass, The mass is cooled and thereby solidified and is then ejected as a solid mass from the mold through its open top by removing the bottom of the mold and applying an upwardly directed force to the bottom of the solid mass to move same upward,
Claims7
A method of forming a new crayon from crayon scraps, said method including the steps of:
- (a) providing a nonmetallic mold having an open upper end, a lower end closed by a removable plug, and an elongated circular cross-section cavity;
- (b) placing a charge of solid crayon scraps in said cavity;
- (c) maintaining said mold in an upright molding position wherein its open upper end is positioned above its lower end while subjecting said charge to microwave energy to heat said scraps until they become a molten mass and cooling said molten mass until it solidifies into a new crayon;
- and then
- (d) removing said new crayon from said cavity by removing said plug and then applying a force to said new crayon at its end remote from said open upper end of said mold, which force is directed to drive said new crayon out of said cavity through said open upper end of said mold.
2 more elements
Dependencies are inferred from the claim text.