US PATENT SUBCLASS 415 / 200
.~ Specific casing or vane material

Current as of: June, 1999
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415 /   HD   ROTARY KINETIC FLUID MOTORS OR PUMPS

182.1  DF  WORKING FLUID PASSAGE OR DISTRIBUTING MEANS ASSOCIATED WITH RUNNER (E.G., CASING, ETC.) {24}
200.~ Specific casing or vane material

DEFINITION

Classification: 415/200

(under subclass 182.1) Apparatus in which the material of the casings*, vane* of flow guiding means is specifically recited in a claim.

SEE OR SEARCH THIS CLASS, SUBCLASS:

216.1, for a specific recitation of the material constituting a shaft*.

217.1, for a specific recitation of a corrosion resistant or nonmetallic material constituting a runner*.