Plastic article or earthenware shaping or treating: apparatus – Including handling means or feature for treating liquid or...
Reexamination Certificate
2000-07-06
2001-08-07
Kuhns, Allan R. (Department: 1732)
Plastic article or earthenware shaping or treating: apparatus
Including handling means or feature for treating liquid or...
C425S289000, C425S383000
Reexamination Certificate
active
06270330
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a method of reclaiming waste foamed polystyrene material. The invention relates also to a system for automatically reclaiming waste foamed polystyrene material.
Polystyrene material has been intensively used for making foamed products (dishes, lunchboxes, buffer materials for packing, and etc.) for the advantage of low cost. However, because waste foamed polystyrene material is bulky and not self-decomposable under the weather, it is difficult to properly dispose of waste foamed polystyrene material, and the cost of disposing of waste foamed polystyrene material is high. Further, directly burning waste foamed polystyrene material produces toxic gas. Therefore, there is a strong demand for an economic, efficient waste foamed polystyrene material reclaiming system.
SUMMARY OF THE INVENTION
The present invention has been accomplished under the circumstances in view. It is the main object of the present invention to provide a waste foamed polystyrene material reclaiming method, which is practical to automatically reclaim waste foamed polystyrene material. It is another object of the present invention to provide a waste foamed polystyrene material reclaiming system, which is practical to automatically reclaim waste foamed polystyrene material. It is another object of the present invention to provide a waste foamed polystyrene material reclaiming system, which is economic, and does not pollute the environment during its operation. According to the present invention, waste foamed polystyrene material is crushed and mixed with a solvent to form a paste-like material. The paste-like material is then distilled into evaporated solvent and reclaimed polystyrene material. The evaporated solvent is then condensed into liquid state solvent for recycling. The reclaimed polystyrene material is then extruded into a mass of reclaimed polystyrene material, and then cold down in a water tank, and then cut into grained-like reclaimed polystyrene material.
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Cheng Shao-Szu
Liu Tung-Han
A & J
Kuhns Allan R.
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