US PATENT SUBCLASS 222 / 250
.~ With discharge volume varying means

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

249  DF  FLOATING PISTON WITH PLURAL OR ALTERNATE DISCHARGE {1}
250.~ With discharge volume varying means

DEFINITION

Classification: 222/250

(under subclass 249) Dispensers having means for varying the capacity of the chamber and/or the stroke of the piston to vary the volume discharged.

SEE OR SEARCH THIS CLASS, SUBCLASS:

282+, and see the notes thereto for other combinations involving discharge volume varying means.

309, for adjustable stops for limiting the movement of a pump piston, pulsator, or follower in a chamber to vary the discharge volume.