Patent ID: 8302594
Filing Date: 2012-11-06
Classification: F23L,F23N,Y10T

Abstract:
1. A firebox air control regulator for controlling combustion comprising: a hollow body having an inlet and an outlet and forming an air passage for an airflow through said hollow body, said outlet being pneumatically connectable to an inlet to a firebox, a disc situated within said hollow body to provide resistance to said airflow and being movable along a support rod attached to said body, said hollow body comprising an upper portion and a lower portion, said air passage extending through said upper and lower portions and comprising an ovaloid opening that is larger than said disc, said air passage in said lower portion further comprising an inner surface further comprising a plurality of arc-shaped depressions and scalloped regions extending outwardly in three dimensions and being intermittently-spaced around said air passage to form a plurality of intermittently-spaced airflow channels between said inner surface and said disc at said intermittently-spaced arc-shaped depressions, said intermittently-spaced airflow channels continuously varying in size as said disc moves along said support rod within said lower portion, each said airflow channel being configured to direct a moving air column toward the perimeter of said disc to influence the movement of said disc and to support and stabilize said disc.