Hvac Inventors/systemation, Inc.

John T Ehling

David E Daw

Apparatus and methods are described for automatically closing the seam of duct work and for automatically inserting angle plates into duct work and then closing the seam of the duct work. The seam closing apparatus includes a first seam closing members for closing the top and bottom portions of the seam and a second seam closing member for closing the remainder of the seam of the duct work.

Apparatus and method for closing duct seams and for inserting angle plates and closing duct seams

An apparatus and method are disclosed for the automated manufacture of a duct flange profile to make small duct fittings, including a TDF duct flange profile. The duct flange profile is directed to small part duct fittings with section widths up to about 16 inches in 20 to 26 gauge metal. The apparatus includes a bending head assembly having a drive roller, a pressure roller, an anvil and a bending leaf and a roll form assembly.

Apparatus and method for forming duct flanges and duct work

An apparatus and method are disclosed for the automated manufacture of a duct flange profile to make small duct fittings, including a transverse duct flange duct flange profile. The duct flange profile is directed to small part duct fittings with section widths up to about 16 inches in 20 to 26 gauge metal. The apparatus includes a bending head assembly having a drive roller, a pressure roller, an anvil and a bending leaf and a roll form assembly.

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Edison, NJ, United States of America

John T Ehling