Integral transverse flanges for a duct connecting system

Details Integral transverse flanges for a duct connecting system Integral transverse flanges for a duct connecting system

2007-06-26

2007-06-26

Bochna, David (Department: 3679)

Pipe joints or couplings

Materials

Sheet

Reexamination Certificate

active

11047413

ABSTRACT:
An integral transverse flange for a duct includes a first upturned portion extending substantially perpendicularly from a duct wall of the duct. The flange further includes a second portion bent rearwardly from the first upturned portion, and a third return portion turned toward the duct wall and rounded back toward the first upturned portion from the second portion. A fourth L-shaped portion extends from the third return portion, the L-shaped portion having a first arm arranged adjacent to and in close relation with the second portion and a second arm arranged adjacent to and in close relation with the first upturned portion. A bead is formed in the first upturned portion.

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