Elevated fixed-grate apparatus for use with multi-fuel furnaces
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Apr 7, 2015
Grant Date -
Dec 22, 2011
app pub date -
Aug 29, 2011
filing date -
Aug 29, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A combustion device in the form of an elevated fixed-grate that includes arcuately shaped solid refractory brick with ribs placed thereunder so as to allow horizontal air flow for fuel combustion. The brick are arranged atop one another in a stacked concentric configuration that forms a central fuel passageway and allows cascading of a fuel pile throughout the combustion stages. The device provides the benefit of proper de-ashing online while distributing the underfire air radially around the fuel pile. The elevated design of the bricks allows the air to be evenly distributed throughout the fuel pile and further allows the isolation of overfire and underfire air. Segregating overfire and underfire air in an evenly distributed manner allows the burner to combust a wide range of fuel moisture contents without modifying the mechanical components of the burner.
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International Classification(s)
- 2011 Application Filing Year
- F23J Class
- 70 Applications Filed
- 53 Patents Issued To-Date
- 75.72 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F23J Class
- 0 % this patent is cited more than
- 10 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 7, 2026 |
