Burner

Details Burner Burner

2005-02-04

2010-12-28

McAllister, Steven B (Department: 3749)

Combustion

Mixer and flame holder

C431S329000, C431S350000, C431S328000, C126S0920AC, C126S09200C, C122S017100

Reexamination Certificate

active

07857617

ABSTRACT:
A gas burner including a burner body having a lower housing, an inlet conduit and a combustion surface element attached to the lower housing. A diffuser/reflector positioned within the body encourages even distribution and mixing of a combustible gas/air mixture. The diffuser/reflector is preferably of a sheet metal construction and includes a plurality of stamped openings with each of these openings having an overhanging guide plate. The combustion surface element includes a plurality of integrally formed rigidizing ribs and is made from a high temperature steel alloy wire cloth. The inlet conduit is secured directly or indirectly to an access door/bulkhead that is used to close off an access opening formed in a water heater wall through which the burner is installed. In one construction, an air scoop shrouds the inlet conduit and at least partially defines a flow path of primary air, substantially isolated from the combustion chamber.

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The photographs illustrate a heat exchanger construction that has been in public use for more than a year before the filing of the subject application. The photographs show an end of a heat exchanger tube attached to a vestibule panel of a heat exchanger.

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