Method and apparatus for cleaning an article
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jul 8, 2003
Grant Date -
N/A
app pub date -
Jun 28, 2000
filing date -
Jun 30, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cleaning apparatus includes cleaning vessels 2a and 2b for storing cleaning water 'W1' used for cleaning an article to be cleaned 14; concentrating vessels 3a and 3b for storing sewage 'W2' discharged from the cleaning vessels; an ultrafiltration membrane 11 for receiving the sewage 'W2' discharged from the concentrating vessels to separate the received sewage into filtered water 'W3' and concentrated sewage 'W5'; and waterway lines 'L4' and 'L12' for returning the concentrated sewage 'W5' discharged from the ultrafiltration membrane 11 to the concentrating vessels 3a and 3b. The filth is removed from the article to be cleaned 14 by dipping the article to be cleaned 14 into the cleaning water 'W1'. The ultrafiltration membrane 11 is provided with a backwash filtration system 'L9', 'B4', and 'P3' for removing filthy refuse.
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