Appeal No. 95-4866
Application 08/179,770
surface and a second plenum surface;
(c) a second fixed wall affixed to the trailer parallel
to the first fixed wall and spaced apart from the first fixed
wall by a given distance, the second fixed wall including an
outer substantially planar mold surface and a second plenum
surface,
wherein the plenum surface of the second fixed wall opposes
the plenum surface of the first fixed wall;
(d) a housing extending between the first fixed wall and
the second fixed wall to form a furnace plenum therebetween,
the furnace plenum including a return duct the furnace plenum
having an inlet exposed to the first plenum surface and the
second plenum surface, and an outlet exposed to the return
duct;
(e) a heater having an inlet and an outlet, wherein the
heater outlet is fluidly connected to the furnace plenum inlet
and the heater inlet is fluidly connected to the furnace
plenum outlet to form a substantially closed fluid circuit
between the heater and the furnace plenum;
(f) a plurality of transverse channels connected to the
trailer transverse to the longitudinal axis;
(g) a first set of transverse beams slideably disposed
within the transverse channels;
(h) a second set of transverse beams slideably disposed
within the transverse channels;
(i) a first movable wall connected to the first set of
transverse beams for movement relative to the first fixed wall
between a casting position adjacent the mold surface of the
first fixed wall for forming a first mold therebetween and a
discharging position remote from the first fixed wall, the
first mold including a first concrete inlet for introducing
concrete into the first mold; and
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Last modified: November 3, 2007