Gas separation – Plural serial basically diverse separating media – Plural stages in unitary casing
Reexamination Certificate
2007-07-24
2007-07-24
Hopkins, Robert A. (Department: 1724)
Gas separation
Plural serial basically diverse separating media
Plural stages in unitary casing
C055S345000, C055S426000, C055S429000, C055S459100, C055S472000, C055S482000, C055S525000, C055SDIG030
Reexamination Certificate
active
10904689
ABSTRACT:
The invention relates to dirt separator module comprising a dirt-separation housing having an inlet and an outlet opening and defining a cyclonic airflow separator, and a suction source fluidly connected with the dirt-separation housing. A separator plate and a cylindrical wall of the dirt-separation housing form a toroidal cyclonic airflow chamber in the dirt-separator for aiding in the separation of dirt from a suction airstream developed by the suction source. The separator plate has an outer diameter smaller than the inner diameter of the cylindrical wall of the dirt-separation housing, creating a gap between the outer edge of the separator plate and the inner wall of the dirt tank. A further embodiment includes dual cyclonic separators fluidly connected through a filter assembly. A further embodiment includes a cyclonic separator in the form of a tangential helical ramp.
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Hansen Samuel N.
McDowell David E.
Metzger Eric R.
Smith Gary L.
Bissell Homecare Inc.
Hopkins Robert A.
McGarry Bair PC
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