| 摘要 |
PURPOSE:To make it possible to store foods, metals and all materials to be oxidized in a warehouse such as a refrigerator, etc., for a long time, by igniting a lighter in the warehouse when an opening and closing cover is closed so that oxygen in air in the warehouse is burnt and consumed. CONSTITUTION:When an opening and closing door of the warehouse 1 such as refrigerator, freezer, etc., is closed, the sensor switch 10 is made on and the connected solenoid 7 is operated to ignite the lighter 4. Consequently, oxygen in air in the warehouse is burnt and consumed and foods, metals and all materials to be oxidized stored in the warehouse 1 can be preserved for a long period.
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