US PATENT SUBCLASS 366 / 90
.~.~ Notched, apertured, or interrupted thread

Current as of: June, 1999
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366 /   HD   AGITATING

69  DF  RUBBER OR HEAVY PLASTIC WORKING {14}
79  DF  .~ Stirrer is through-pass screw conveyor {7}
90.~.~ Notched, apertured, or interrupted thread

DEFINITION

Classification: 366/90

Notched, apertured, or interrupted thread:

(under subclass 79) Subject matter wherein said thread or said helical ribbon has an opening therethrough or a discontinuous portion thereon.

SEE OR SEARCH THIS CLASS, SUBCLASS:

322, for discontinuous screw stirrers in a mixing chamber of general utility.

324, for screw-type stirrer with apertured or notched threads in a mixing chamber of general utility.