| 摘要 |
A duct coupling pad for joining flexible ducts includes an outer section surrounding a central opening. An adhesive coating is applied to one surface of the coupling pad for adhering the pad to a first one of the ducts to be joined. An opening is formed in the first duct within the area of the central opening of the coupling pad. Securing tabs integrally formed with the outer section of the coupling pad are folded inwardly into the opening in the first duct and adhered to the inner surface thereof. The coupling pad binds the edge of the opening in the first duct to prevent splitting and tearing of the linings. A collar is inserted into the central opening of the coupling pad and the second duct is connected to the collar.
|
