(under the class definition) Apparatus including means for dampening or preventing the occurrence of noises or vibrations tending to be produced in the operation of the burner assembly.
SEE OR SEARCH CLASS
165, Heat Exchange,
69, for a resilient vibration damper isolating a heat exchanger element and subclass 136 for a heat exchanger with a thermal or acoustical blocker.
248, Supports,
560+, for resilient supports; and subclasses 637+ for machinery supports of general utility.
