US PATENT SUBCLASS 417 / 410.5
.~.~.~ Helical pumping member having planetary movement (e.g., scroll)

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

Internet Version by PATENTEC © 1999      Terms of Use


417 /   HD   PUMPS

321  DF  MOTOR DRIVEN {32}
410.1  DF  .~ Electric or magnetic motor {10}
410.3  DF  .~.~ Rotary expansible chamber pump {2}
410.5.~.~.~ Helical pumping member having planetary movement (e.g., scroll)

DEFINITION

Classification: 417/410.5

Helical pumping member having planetary movement (e.g., scroll):

(under subclass 410.3) Apparatus wherein the pumping member includes continuous working portions in the form of a spiral lying in the same plane and having increasing radius, and has circular translatory or oscillatory movement without rotation about its axis while the axis moves in an orbit.