US PATENT SUBCLASS 222 / 386.5
.~.~ Nonrigid follower


Current as of: June, 1999
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222 /   HD   DISPENSING

251  DF  WITH DISCHARGE ASSISTANT (E.G., IMPELLER, PUMP, CONVEYER, MOVABLE TRAP CHAMBER, ETC.) {30}
386  DF  .~ Container with follower {8}
386.5.~.~ Nonrigid follower


DEFINITION

Classification: 222/386.5

(under subclass 386) Dispensers in which the follower member is of a nonrigid (flexible or resilient) material.

(1) Note. Outer receptacle wall structure is not considered to be a follower and structures wherein a collapsible or resilient outer wall follows the material being dispensed are not included in this subclass. For such devices, see subclasses 92+ of this class.

SEE OR SEARCH THIS CLASS, SUBCLASS:

92+, for collapsible wall type containers, and particularly subclasses 95+, for such containers in combination with wall collapsing means therefor. See (1) Note.

SEE OR SEARCH CLASS

137, Fluid Handling, 564.5, for nonrigid type followers in fluid handling systems.

239, Fluid Sprinkling, Spraying, and Diffusing,

323, for nonrigid followers in spraying systems.