| 摘要 |
The invention is an oil changer intended to encourage proper disposal of used motor oil. It is comprised of an outer container made of cardboard and an inner container of polypropylene and a tie device to seal the motor oil in the inner container. The polypropylene material is non-reactive with the petroleum products and additives found in used engine oil; its tensile strength is approximately 8,000-pounds/inch2, rendering it durable enough to prevent inadvertent oil spillage; and it can withstand temperatures of up to 320 DEG F., making it possible to drain the engine oil into the inner container while the oil is hot. The tie device is of the cable tie variety, providing locking security against oil leakage. The sealed double containment of used engine oil within a durable outer container makes possible the safe and clean transportation, storage and handling of the oil changer during collection for recycling of both the used oil and the component parts of the oil changer itself.
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