US PATENT SUBCLASS 416 / 226
.~ Formed with main spar

Current as of: June, 1999
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416 /   HD   FLUID REACTION SURFACES (I.E., IMPELLERS)

223 R  DF  SPECIFIC BLADE STRUCTURE (E.G., SHAPE, MATERIAL, ETC.) {18}
226.~ Formed with main spar

DEFINITION

Classification: 416/226

(under subclass 223) Apparatus wherein the blade is fabricated by securing portions thereof to a main member which extends longitudinally of the blade from the root end to the tip, said member supporting the weight of the blade and carrying the stress forces exerted thereon.