US PATENT SUBCLASS 222 / 633
.~.~.~ Bellows or bulb

Current as of: June, 1999
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222 /   HD   DISPENSING

630  DF  FLUID FLOW DISCHARGE {4}
631  DF  .~ Fluid flow generated by manually actuated working member {2}
632  DF  .~.~ Flexible working member {1}
633.~.~.~ Bellows or bulb

DEFINITION

Classification: 222/633

Bellows or bulb:

(under subclass 632) Dispenser wherein either (a) substantially the entire chamber wall is formed of an elastically deformable material, or (b) the chamber wall comprises a pair of opposed rigid members connected together by pliant material.