Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 27, 2009
Patent Application Number
11443484
Date Filed
May 30, 2006
Patent Citations Received
Patent Primary Examiner
Patent abstract
In certain embodiments, a dual fuel heater has a pressure regulating device for selectively coupling with a first source or a second source operating at different pressures. The dual fuel heater can also include first and second fuel lines, a fluid flow controller, a combustion chamber and first and second oxygen depletion sensor nozzles. The fluid flow controller is configured to selectively permit flow of fuel to either the first fuel line or to the second fuel line. In some embodiments, the first fuel line is connected to the first oxygen depletion sensor nozzle and the second fuel line is connected to the second oxygen depletion nozzle.
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