Chimney top spark arrester and damper
AssigneesRichard A. Dortzbach, Wrenetta R. Dortzbach
InventorRichard A. Dortzbach
Life of this patent
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Abstract
A combination chimney top spark arrester and damper is provided wherein the damper is positioned within the spark arrester. The damper moves between a closed position in which it covers the top of the chimney flue and an open position in which it is raised above the top of the chimney to allow full, unobstructed flow of flue gases. An actuator includes a counterweight urging the damper into its open position. The actuator allows the user to close the damper and to apply a tensioning force to the closed damper to resist vibration and chattering. The device is quickly installed and fits several different chimney sizes.
Claims7
A combination chimney top spark arrester and damper adapted to be mounted on a chimney top flue opening, comprising:
- a spark arrester hood,
- attachment means for connecting said hood to said chimney top,
- damper means within said hood, said damper means being movable between a closed position in which it covers the top of said chimney flue opening and an open position in which it is raised upwardly above said chimney flue opening a sufficient distance to allow full unobstructed flow of flue gases between said damper and said chimney flue opening, and
- means for moving said damper between said closed and open positions, said means including a counterweight which tends to hold said damper in its open position, and wherein said counterweight must be raised to move said damper to its closed position.
Dependencies are inferred from the claim text.