Furnaces – Including means to feed solid fuel – Movable grate
Reexamination Certificate
2007-10-23
2007-10-23
Rinehart, Kenneth (Department: 3749)
Furnaces
Including means to feed solid fuel
Movable grate
C110S291000, C110S328000, C110S229000, C110S255000, C048S087000
Reexamination Certificate
active
10451463
ABSTRACT:
In one aspect, a grate segment for a burner, comprises a substantially rigid body (30) having a dispersed array of cavities (38) filled with a refractory material. In another aspect, a solid fuel gasifier includes a housing (12) defining a gasifier chamber (14), and a solid fuel inlet (21), grate structure (22, 24) in the gasifier chamber. The grate structure includes base means, a plurality of agitator segments (32) positioned relative to the base means for reciprocating movement to agitate a fuel load in the gasifier, and means to support the base means and the agitator segments so that the latter reciprocate in a direction at a substantial inclination to both horizontal and vertical. In use of the gasifier a deep burden of fuel accumulates on the grate structure and the outward stroke of the reciprocation of the agitator elements is in the overall direction of flow of the fuel burden or generally oppositely thereto.
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International Search Report—PCT/AU01/01666; ISA/Australian Patent Office, Jan. 29, 2002.
Williams Gerald David
Williams Paul Douglas
Harness Dickey & Pierce PLC
Salinas Energy Limited
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