US PATENT SUBCLASS 55 / 342
MULTIPLE SEPARATORS, EACH WITH DISCRETE AND LONGITUDINALLY CONFINED GAS INLET OR OUTLET FLOW PATH

Current as of: June, 1999
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55 /   HD   GAS SEPARATION

342MULTIPLE SEPARATORS, EACH WITH DISCRETE AND LONGITUDINALLY CONFINED GAS INLET OR OUTLET FLOW PATH {5}
342.1  DF  .~> With heating or cooling means or having insulation {1}
343  DF  .~> Combined serial and parallel arrangement
344  DF  .~> With flow equalizing, controlling, or distributing means
345  DF  .~> Centrifugal {1}
350.1  DF  .~> Filters

DEFINITION

Classification: 55/342

(under the class definition) Apparatus comprising a plurality of separating devices each having a separate and individual system fluid inlet or outlet conduit of extended length.

(1) Note. Concentrate collection receptacles provided with gas escape means and which serve to permit concentrate to be in part air borne to the said receptacle and therefore may act as a secondary separator are not considered as separators for classification with a similar serially arranged separator under this definition, but as proper subject matter for subclasses 428+.

(2) Note. Cyclone or centrifugal whirl separators in parallel are classified under this definition and will be

found in subclasses 346+ regardless of the length of the inlet or outlet conduit. Separating devices which have whirl producing stages in series, or other separators in series or parallel must each have a gas inlet or outlet conduit of length sufficient to be readily identifiable in order to come under this definition. A device in which only the casing wall forms the flow path for a plurality of separators is excluded and will be found in subclasses 442+ or 482+, unless the casing wall between series related separating devices is modified to form a flow path portion of different area than the preceding or following portion.

SEE OR SEARCH THIS CLASS, SUBCLASS:

315+, for serial arrangements of cyclone and other types of separating devices.

428+, for residue handling means and see (1) Note under subclass 428.