A patent infringement letter by CTI of Elmsford, New York, targeted competing plasma cutting systems and CAD systems in 1992. The resulting losses threw the entire industry into chaos, writes SNIPS Contributor and Industry Icon David Daw.
While Ductmate and others were changing transverse duct construction in the '80, another cadre of businesses began bringing the industry into the computer era.
SNIPS Industry Icon David Daw reviews the developments of the HVAC Sheet Metal Industry in the 1970s – including the transition from sheet stock to coil.
Saving labor was a priority in the 1970s as much it is today. One of the biggest developments in the ‘70s (and ‘80s) came from transitioning away from fabricating rectangular sheet metal duct “straights” using galvanized sheet stock, instead using 12,000 pound, 48” and 60” coils.