Gas separation – With nonliquid cleaning means for separating media – Cohesive filter media cleaning
Reexamination Certificate
2011-01-11
2011-01-11
Hopkins, Robert A (Department: 1797)
Gas separation
With nonliquid cleaning means for separating media
Cohesive filter media cleaning
C055S341100, C055S430000, C055S432000, C096S222000
Reexamination Certificate
active
07867305
ABSTRACT:
The bag-filter type small deodorizing and dust collecting apparatus including a feed pipe feeding deodorizing powder, a rotary valve discharging the deodorizing powder by a fixed amount, and a reflux pipe for refluxing the deodorizing powder from the rotary valve A blower is provided for refluxing the deodorizing powder. Furthermore a switchover gate is mounted on a discharge side of the rotary valve. Branch pipes are connected to the switchover gate, such that one branch pipe is connected to a discharging chamber and the other branch pipe is connected to the reflux pipe. Dust is collected while enabling deodorization, or in particular, enabling local deodorization of a foundry or the like, mainly, without a need for a large-scaled apparatus for circulation, supply and discharge of the activated carbon or the like used therein.
REFERENCES:
patent: 08010561 (1996-01-01), None
Greigg Ronald E.
Hopkins Robert A
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