Patent ID: 8079359

Claim:
A hood device for a grill comprising: a hood for partially covering a grill at a first elevated vertical position and collecting smokes from the grill; a telescoping tubing extending from the hood and configured for ventilating the smokes collected by the hood, wherein the telescoping tubing is configured to telescope between the first elevated vertical position and a second elevated vertical position, and wherein the telescoping tubing stays at a position until a predetermined magnitude of force is applied to change vertical position; a filter assembly disposed at a lower end of the telescoping tubing, comprising filter with a plurality of concentric and cylindrical layers; a grease cup disposed at the bottom of the filter assembly for collecting grease from the filter with the plurality of concentric and cylindrical layers and filtered smokes; a fan disposed in an upper portion of the telescoping tubing for building up an ascending air current inside the telescoping tubing and space between the hood and the grill; and an insulated handle for lowering and raising the hood wherein velocity of the ascending air current is determined according to the first elevated vertical position, a ratio of a diameter of the hood to a diameter of the grill, and a surface temperature of the grill, wherein the layers for the filter comprise inner strips and outer strips arranged intermediately, wherein the telescoping tubing comprises a spring counterbalance device for holding, raising, and lowering the hood smoothly between the first and second elevated vertical positions; wherein the spring counterbalance device further comprises a wire rope which is connected to the insulated handle through a bar.