.~.~ Having vibration absorbing or preventing structure
DEFINITION
Classification: 454/346
Having vibration absorbing or preventing structure:
(under subclass 341) Subject matter including structure which either (1) takes in without passing on, or (2) prohibits at least part of any rapid, unwanted shaking of the air exhausting means or a support therefore.
(1) Note. For the line between Class 454 and other classes, see the Search Notes below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
206, for a window mounted air pump including specific noise inhibiting structure.
262, for an inlet airway, including structure for mixing plural airstreams together, which has specific noise inhibiting structure.
906, for a cross-reference art collection of ventilating structure combined with noise inhibiting means.
212+, for a fluid-conducting-type sound muffler of a general nature, and see the (1) Note to subclass 212 for the lines to this class (454); and subclass 224 for a sound absorbing ventilating duct.
