Gas separation – Combined or convertible
Patent
1992-01-28
1993-04-20
Nozick, Bernard
Gas separation
Combined or convertible
55493, 55467, 55481, 355215, B01D 5000
Patent
active
052038939
ABSTRACT:
A filter case having open opposite ends is disposed with one of the open ends thereof facing an air exit formed in the side wall of the housing of an electrophotographic apparatus, and a filter element holding frame having an upper opening through which an ozone filter element is inserted therein is supported pivotally at its lower end on the lower portion of the filter case for turning about a substantially horizontal axis so as to be fitted in the filter case. In changing the ozone filter element, the cover is opened, the filter element holding frame is turned about the substantially horizontal axis to expose the upper opening thereof outside the filter case so that the ozone filter element can be taken out through the upper opening from the filter element holding frame. The wide, open upper space in the housing facilitates the filter element changing operation. Since the wide, open upper space in the housing is available for taking out the ozone filter element from and inserting the same in the filter element holding frame, the space between the inner surface of the side wall of the housing and the filter case may be relatively small and hence the size of the housing can be reduced accordingly.
REFERENCES:
patent: 1521576 (1924-12-01), Wittemeier
patent: 2575499 (1951-11-01), Manow
patent: 3626669 (1971-12-01), Cardiff
patent: 5117262 (1992-05-01), Yamaguchi
Nozick Bernard
Tokyo Electric Co. Ltd.
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