US PATENT SUBCLASS 416 / 17
.~ Feathering cycle related to flow direction


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)

9  DF  WITH MEANS POSITIONING FLUID CURRENT DRIVEN IMPELLER RELATIVE TO FLOW DIRECTION {2}
17.~ Feathering cycle related to flow direction


DEFINITION

Classification: 416/17

(under subclass 9) Apparatus wherein the impeller motion is regular and recurrent (e.g., oscillatory, rotary, etc.) and one or more working members* thereof assume a changed operative relationship to the flowing medium at a predetermined point in the cycle of operation, the point at which the cyclic working member motion occurs being maintained at a constant fixed relation to the direction of working fluid flow.