(under the class definition) Apparatus including a chamber, chimney, or shield forming a flame enclosing zone and having distinct means additional to the normal combustion material supply or exhaust structure by which passage to or from the zone may be had, or by which the interior of the zone may be exposed; e.g., an ignition or cleaning port, etc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
129+, for a movable burner head cover and interrelated igniter.
146+, for a movably or removably mounted burner cover.
153, for the correlation of burner fuel or power supply with component movements (e.g., door opening, etc.) in a disabling and enabling sequence.
186, for a furnace having a fuel and air disperser shiftably mounted in a wall opening of a furnace. 189, for a fuel disperser adjustably mounted for movement relative to a furnace wall opening.
191+, for a burner ignited by a flash flame through a conduit.
197, for a perforated combustion annulus mounted for access to an underlying annular fuel distributor.
