US PATENT SUBCLASS 222 / 383.2
.~.~.~ Rotary pump

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

Internet Version by PATENTEC © 1999      Terms of Use


222 /   HD   DISPENSING

251  DF  WITH DISCHARGE ASSISTANT (E.G., IMPELLER, PUMP, CONVEYER, MOVABLE TRAP CHAMBER, ETC.) {30}
372  DF  .~ With material supply container and discharge assistant with casing (e.g., supply container and pump) {10}
383.1  DF  .~.~ Container-mounted pump {4}
383.2.~.~.~ Rotary pump

DEFINITION

Classification: 222/383.2

Rotary pump:

(under subclass 383.1) Subject matter wherein a working member of the pump undergoes a rotary motion.

SEE OR SEARCH CLASS

418, Rotary Expansible Chamber Devices, for rotary pump.