Abstract: Apparatus and method for dispensing L-shaped duct connectors. The apparatus supports a stack of nested L-shaped connectors and includes a separator for causing the second bottommost connector to be biased out of nesting engagement with the first bottommost connector in the stack upon the application of an advancement force to the first bottommost connector. The apparatus includes an advancement assembly for selectively advancing the first bottommost connector to an installation position wherein it may be installed in a C-shaped flange attached to a duct segment. After the first bottommost connector is moved to the installation position, the second bottommost connector then moves under the influence of gravity to a position wherein it can be advanced to the installation position.

Abstract: An apparatus for inserting the legs of an L-shaped corner member into corresponding channels of elongated flange members used in an assembly for connecting the adjacent ends of sheet metal ducts. The apparatus, in a preferred form, comprises a base member that is adapted to receive a first flange member in a receiving position. A first corner positioning member is attached to the base member and is adapted to position a leg of an L-shaped corner member in confronting relationship with the channel of a first flange member. First insertion apparatus is attached to the positioning member for selectively inserting the positioned leg into the channel of the first flange member a predetermined distance. A second corner positioning member is attached to the base member for orienting an end of a second flange member in confronting relationship with respect to the other leg of the L-shaped corner member.

Abstract: An apparatus for inserting a leg of an L-shaped corner member into the channel of an elongated flange member used in an assembly for connecting the adjacent ends of rectangular sheet metal ducts. The apparatus, in a preferred form, comprises a base member that is adapted to receive a flange member in a receiving position. A corner positioning member is attached to the base member and is adapted to position a leg of a corner member in confronting relationship with the channel of the flange member. Insertion apparatus is attached to the positioning member for selectively inserting the positioned leg into the channel of a flange member a predetermined distance.