| 摘要 |
Apparatus is disclosed for connecting components of the duct work of a heating or air conditioning system, or a combined system, where one of the components to be connected is made of duct board such as fiber board, or other relatively easily penetrable material. The connecting apparatus includes an elongated strip member for overlapping the ends of adjacent duct components to be connected, and this strip member is made of material, such as sheet metal, which may be cut or bent to conform with the joint to be made. Slots are provided in the strip member so that a pull tie having an enlarged head portion and a tail portion or pull member may be inserted through the strip member and through the fiber board and then the tail portion pulled and twisted to secure the strip member to the fiber board. Various forms of the strip member and methods employing such apparatus are also disclosed.
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