Furnaces – Including means to feed solid fuel – Movable grate
Patent
1995-12-22
1998-11-24
Bennett, Henry A.
Furnaces
Including means to feed solid fuel
Movable grate
110330, 110274, F23H 1100
Patent
active
058393765
ABSTRACT:
An individual key, a stoker incorporating a plurality of the keys, or a furnace incorporating the stoker which includes a key apparatus having a mounting surface dimensioned and configured for sliding engagement with an associated arm, the mounting surface is disposed on the bottom of the key, an upper face receives associated fuel to be burned, a first side having a first contour, and a second side having a second contour. The second contour is different than the first contour. In some forms of the invention the first contour and the second contour are dimensioned and configured for meshing engagement whereby a first side of a first key will mesh with a second side of a second key when a plurality of the identical keys are arrayed in side abutting relationship. The first contour may includes a first lip and the second contour may include a second lip and the the first lip may be disposed at a different elevation than the second lip. In some cases the entire extent of the first lip is at a different elevation than the entire extent of the second lip. At least one of the lips may include indentations to allow airflow for cooling and combustion.
REFERENCES:
patent: 4308034 (1981-12-01), Hoang
patent: 5361892 (1994-11-01), Hamaker et al.
patent: 5551356 (1996-09-01), Post
Bennett Henry A.
Combustion Engineering Inc.
Smith Robert S.
Tinker Susanne C.
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