Road structure – process – or apparatus – Apparatus – With means for heating a road base – surface – or material
Reexamination Certificate
2006-05-02
2006-05-02
Addie, Raymond W (Department: 3671)
Road structure, process, or apparatus
Apparatus
With means for heating a road base, surface, or material
Reexamination Certificate
active
07037036
ABSTRACT:
An articulated frame movable between a collapsed position and an extended position. A main wheel assembly is attached to the frame and movable between a support position where the main wheel assembly supports the frame and enables the asphalt seam heater to be towed behind a towing vehicle when the articulated frame is in the collapsed position, and a retracted position wherein the main wheel assembly does not support the frame. At least one asphalt heater of a defined configuration is disposed within and supported by the frame. Each heater includes a housing having an upper chamber and a lower chamber; a gas-permeable refractory material disposed in the housing to define a closed upper chamber and an open-ended lower chamber; a fuel line for introducing a combustible fuel-air mixture in to the upper chamber; a venturi disposed between the fuel line and the upper chamber; and an igniter disposed in the lower chamber, wherein fuel introduced into the upper chamber diffuses through the gas-permeable refractory material and into the lower chamber, where it is ignited by the igniter.
REFERENCES:
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patent: 5218952 (1993-06-01), Neufeldt
patent: 5653552 (1997-08-01), Wiley et al.
patent: 6669467 (2003-12-01), Kieswetter
Addie Raymond W
DeWitt Ross & Stevends S.C.
Leone, Esq. Joseph T.
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