B - Operations – Transporting – 08 – B
Patent
B - Operations, Transporting
08
B
182/13.2
B08B 9/04 (2006.01)
Patent
CA 1260405
ABSTRACT OF THE DISCLOSURE A method for washing an inner surface of a tubular permeable membrane which comprises: preparing a friction piece having a hardness of from about 10° to 30° (measured according to JIS K6301, 5-2) attached to an end of an elastic rod-like support, and operating the support to reciprocate the friction piece within the tubular permeable membrane to thereby act a rub-washing force of from about 0.1 to 1.0 kg/cm2 between the inner surface of the tubular permeable membrane and the friction piece so as to remove contaminants adhered to the inner surface of the tubular permeable membrane.
487841
Hayashi Masahiko
Iwahori Hiroshi
Nitto Electric Industrial Co. Ltd.
Riches Mckenzie & Herbert Llp
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