US PATENT SUBCLASS 366 / 320
.~.~.~ Openwork helical ribbon

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

Internet Version by PATENTEC © 1999      Terms of Use


366 /   HD   AGITATING

241  DF  STIRRER WITHIN STATIONARY MIXING CHAMBER {10}
279  DF  .~ Rotatable stirrer {15}
318  DF  .~.~ Screw-type stirrer {6}
320.~.~.~ Openwork helical ribbon

DEFINITION

Classification: 366/320

Openwork helical ribbon:

(under subclass 318) Subject matter wherein the helical ribbon has an open central portion for flow of material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

227, for a helical-type deflector in a rotatable mixing chamber.

310, for a helical-type scraper in a stationary mixing chamber.

339, for a helical ribbon deflector in a stationary flow-through mixing chamber.