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US 6,203,423 B1Granted
Damper flap and duct connector assembly
AssigneeBroan Manufacturing Co., Inc.
InventorsGary J. Craw, Daniel L. Karst
Life of this patent
Estimating the term…
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AssigneeBroan Manufacturing Co., Inc.
InventorsGary J. Craw, Daniel L. Karst
Estimating the term…
A damper flap and duct connector assembly for controlling air flow through a ventilation system includes a damper flap pivotably mounted to a duct connector. The connector connected to a ventilator has an air flow opening disposed in its center and a cylindrical ring extending from the outer edge that is connected to a ventilation duct. The connector also includes a pair of spaced, opposed brackets disposed above one edge of the air flow opening. The damper flap includes a generally rectangular plate forming the body of the flap that rests over the air flow opening in the connector to selectively open and close the opening, and a pair of arms extending outwardly from one edge of the plate. The arms are rolled towards the plate to form a pair of mounting tubes separated by a flexible portion of the plate. The length between opposite ends of the tubes is longer than the length between the opposed brackets. Due to the ability of the plate to flex, this distance may be shortened to allow the sleeves to be inserted into mounting openings in the brackets to pivotably retain the damper flap on the connector.
An improved damper flap and duct connector assembly comprising:
An improved damper flap for use with a duct connector in a ventilation system comprising:
In a damper flap and duct connector assembly, the assembly having a duct connector including a flat, generally circular panel, the panel having an air flow opening and a pair of facing brackets disposed above the opening and extending outwardly from the panel, and having a cylindrical ring attached about the periphery of the panel and extending generally parallel to the brackets, and the assembly having a damper flap formed of a resilient material having a width generally greater than the air flow opening and pivotably mounted between the brackets, the improvement comprising:
Dependencies are inferred from the claim text.