A - Human Necessities – 61 – L
Patent
A - Human Necessities
61
L
A61L 2/26 (2006.01)
Patent
CA 2735027
A gas supply passage 13 for supplying a gas is connected to a decontamination liquid supply passage 5 at a tail end portion 5a side from delivery means 4, and an on- off valve 14 which opens and closes the gas supply passage is provided. Control means 3 stores a housed weight R of the decontamination liquid which is housed in the decontamination liquid supply passage between a connection point A at which the above described gas supply passage is connected to the decontamination liquid supply passage and the above described tail end portion 5a. When a weight of the decontamination liquid is reduced by a total value of a predetermined weight W which should be supplied to the downstream side equipment and the above described housed weight R as a result of starting supply of the decontamination liquid to the above described downstream side equipment, the control means opens the above described on-off valve to return the decontamination liquid at the upstream side from the connection point, that is, the decontamination liquid of the housed weight R to the decontamination liquid storing means, while supplying the decontamination liquid of the predetermined weight W to the downstream side equipment. The air purge operation and the air purge piping which have been conventionally required can be omitted.
Yamamoto Kanjun
Borden Ladner Gervais Llp
Shibuya Kogyo Co. Ltd.
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