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|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||285/189 ; 285/424|
|발명자 / 주소|
|인용정보||피인용 횟수 : 8 인용 특허 : 2|
A device is disclosed relating to sheet metal duct connections, particularly where sections of metal ducts must be joined during construction of metal duct work. A connecting device cuttable to any desired length without substantial waste can be inserted on a segment of duct and joined to a wall or second duct surface having an opening cut to the size of the first duct to which is attached the connecting device. By manual manipulation, the connecting device can then anchor the first duct to the wall or second duct opening.
A connecting device for anchoring a duct segment to an opening in a wall, the duct segment having a peripheral edge portion closely receivable into the opening, the connecting device being formable of integral construction from a metal sheet of substantially uniform thickness and comprising a plurality of strips defined by bending said sheet along crease lines, the strips including first and second gripping strips and first and second flange strips, said first and second gripping strips being adapted for grippingly fitting over said peripheral edge porti...