(under subclass 631) Dispenser wherein at least a portion of the chamber wall comprises a pliant material which is deflected to change the volume of the chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
92+, for a supply holder having a collapsible wall which does not return to its original position.
206+, for dispensers having a resilient wall which is deflected to expel the material.
SEE OR SEARCH CLASS
239, Fluid Sprinkling, Spraying, and Diffusing,
327, for a supply container having a resilient wall; and subclasses 362 and 363 for flexible wall gas pumps which generate fluid pressure to dispense material.
