Gas separation – With nonliquid cleaning means for separating media – Cohesive filter media cleaning
Reexamination Certificate
2005-05-31
2005-05-31
Pham, Minh-Chau T. (Department: 1724)
Gas separation
With nonliquid cleaning means for separating media
Cohesive filter media cleaning
C055S284000, C055S291000, C095S278000, C095S280000, C210S411000, C210S412000, C210S433100, C210S088000
Reexamination Certificate
active
06899742
ABSTRACT:
In a cleaning arrangement for a filter element disposed in a gas flow channel and including a plurality of filter pockets, a flow blocking element arranged adjacent the filter element at the downstream side thereof and having openings movable with the flow blocking element into alignment with the various filter pockets for controlling a back-flushing gas flow through the filter element, the blocking element is an elastic thin-walled structure provided with at least one opening of a shape corresponding in cross-section to the filter pocket openings and means are provided for generating in the area downstream of the blocking element a gas pressure for back-flushing the filter element pockets in succession as the blocking element with the at least one opening is moved across the filter element.
REFERENCES:
patent: 2782612 (1957-02-01), Spiegelhalter
patent: 2976953 (1961-03-01), Haas et al.
patent: 4521230 (1985-06-01), Strong
patent: 6558443 (2003-05-01), Leibold
patent: 1 146 339 (1963-03-01), None
Bach Klaus J.
Pham Minh-Chau T.
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