Heating – Heating apparatus element having protective cooling structure – Door – cover – door frame or rim of cover
Reexamination Certificate
2011-05-31
2011-05-31
Wilson, Gregory A (Department: 3749)
Heating
Heating apparatus element having protective cooling structure
Door, cover, door frame or rim of cover
C432S192000, C432S250000, C110S331000, C110S332000
Reexamination Certificate
active
07950922
ABSTRACT:
A portico furnace includes a number of porticos (1), which are arranged parallel to one another and which define the spans of the furnace, and supports (2, 6) that are attached to the porticos (1), between which are positioned interjoists (3) that constitute the walls of the furnace. At least some of the interjoists (3) consist of a chimney block (4) with an axis that is parallel to the supports (2, 6).
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patent: 6427610 (2002-08-01), Coates et al.
patent: 2834549 (2003-07-01), None
CERIC
Wilson Gregory A
Young & Thompson
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