Cleaning and liquid contact with solids – Processes – Including use of vacuum – suction – or inert atmosphere
Patent
1987-09-08
1989-12-26
Pal, Asok
Cleaning and liquid contact with solids
Processes
Including use of vacuum, suction, or inert atmosphere
134 254, 134 31, 134 36, 134 37, 134140, 134153, 134199, B08B 502, B08B 504
Patent
active
048895644
ABSTRACT:
A method of cleaning a magnetic disk comprises the steps of rotating a magnetic disk housed in a cage, feeding a gas into the case, and at the same time sucking the gas from the inside of the case via window openings formed in upper and lower surfaces of the case, whereby the efficiency of discharge of dust from the case is improved by interaction of the gas feeding with the gas suction. An apparatus for cleaning a magnetic disk comprises a rotation shaft for rotating a magnetic disk housed in a case. The rotation shaft is provided with a gas passageway in the inside, and a gas discharging hole which is formed near a leading end portion to communicate with the gas passageway and which is opened inward of the case. A gas feeder is disposed for feeding gas into the gas passageway, and two gas suction devices for sucking gas from the case in the course of rotation of the magnetic disk are disposed to face respectively window openings formed in upper and lower surfaces of the case.
REFERENCES:
patent: 4202071 (1980-05-01), Scharpf
patent: 4675053 (1987-06-01), McCarty et al.
patent: 4720248 (1988-04-01), Thro et al.
Kikuchi Yasushi
Matsuzawa Hideki
Fuji Photo Film Co. , Ltd.
Pal Asok
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