US PATENT SUBCLASS 416 / 179
ROTOR HAVING FLOW CONFINING OR DEFLECTING WEB, SHROUD OR CONTINUOUS PASSAGE

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


416 /   HD   FLUID REACTION SURFACES (I.E., IMPELLERS)

179ROTOR HAVING FLOW CONFINING OR DEFLECTING WEB, SHROUD OR CONTINUOUS PASSAGE {4}
180  DF  .~> Blades projecting axially from concavo-convex annular web
181  DF  .~> Apertured or foraminous web or shroud
182  DF  .~> Radially extending web or end plate {3}
189  DF  .~> Axially extending shroud ring or casing {4}

DEFINITION

Classification: 416/179

(under the class definition) Apparatus wherein a rotary impeller* comprises (1) a working fluid flow directing surface integral with the impeller* and circumferentially continuous about the rotation axis or (2) a flow passage which wholly confines the working fluid while in working engagement therewith.

(1) Note. Included under this definition is a device in which a surface or part of the working member forms a portion of the circumferentially continuous flow directing surface.

(2) Note. Included in this and indented subclasses is a device which would inherently confine fluid, as defined, even though not so specifically disclosed.