.~.~ Of flexible wall, expansible chamber devices (e.g., bellows)
DEFINITION
Classification: 29/454
Of flexible wall, expansible chamber devices (e.g., bellows):
(under subclass 428) Process for manufacturing a container, the volume of which is changeable by means of relative motion of one or more of the walls of the container, which walls are resilient, pliable, or yielding.
(1) Note. The devices manufactured in this subclass are variously known in the arts as bellows, bourdon springs, "syphons", expansible diaphragms, etc.
SEE OR SEARCH CLASS
92, Expansible Chamber Devices,
34+, for a bellows type expansible chamber.
138, Pipes and Tubular Conduits,
118+, for a flexible pipe, particularly subclasses 121+ for a flexible corrugated pipe.
267, Spring Devices, 118+, for an expansible-contractible chamber spring device.
285, Pipe Joints or Couplings,
226+, for a tubular structure adapted for connecting two relatively movable parts to form a flexible and expansible fluid tight joint therebetween. See the search notes thereunder.
