US PATENT SUBCLASS 222 / 389-- .~.~ Fluid pressure actuated

US PATENT SUBCLASS 222 / 389
.~.~ Fluid pressure actuated

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}
386	DF	.~ Container with follower {8}
389		.~.~ Fluid pressure actuated

DEFINITION

Classification: 222/389

(under subclass 386) Dispensers in which the follower is operated by fluid under pressure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

258, 261 and 262, for combinations with other discharge assistants.

386.5, for dispensers having nonrigid followers which are operated by fluid under pressure.

394+, and see the notes thereto for related art.

SEE OR SEARCH CLASS

137, Fluid Handling, 564.5, for a follower type feeder responsive to a main line flow in a fluid handling system.

184, Lubrication,

39+,.