good luck with that - USDA does not "certify" that sort of thing. the USDA sets standards, approved methods, time/temperature, etc. they are not in the same camp as Underwriters Laboratories.
The old bayonet-lock style pressure cookers have gone out of favor because,,, ah nuts - they age/fatigue/blow up.
using any old "pressure cooker" for "pressure frying" is exceedingly highly dis-recommended for safety reasons. pressure frying cookers are available - tad pricey, but cheaper than burning the house down and all the subsequent skin grafts.
yeah, The Colonel got away with it; you might not.
Sorry.
Meant to say that pressure canning is the only canning method that is recommended AND deemed safe by the USDA for canning veggies, meats, poulrty and seafood.
Trust me, my Fagor unit IS qualified and certified to pressure fry chicken. That feature was successfully demonstrated with it at the New England Home Show in Boston, where I bought it. Fourteen years ago, I might add. It was one of the main features that helped influenced me to buy it. Not only that. It can also pressure-dry-roast a whole chicken and small roasts
I've also done it with it several times. The manul has recipes for pressure fried chicken. Also, French fries & seafood can be pressure fried in it.
As for the "old" bayonet lock-style units, Fagor STILL makes them, and mine has never blown up at all, nor has it even come close. They are still a hit, according to Fagor. I've since replaced the gasket, large screw knob and handles on mine. It STILL works as though it were brand new, strong as ever. Fagor's website, Pro-selections.com, still sells the units, as well as replacement parts & accessories for them.
Both my Fagor and Kuhn Rikon units are UL-certified. Thay HAVE to be, in order to help ensure that they are safe to use and meet or exceed the expectations of the US Gov't for consumer use. Or otherwise they would not be deemed safe to use.
Aslo, a pressure cooker is as safe as the person using one. It has to be treated with respect and care. Anyone who abuses it will most certainly face dangerous conditions and will truly risk being injured.
I've been using a pressure cooker ever since my mom had hers, a 6-qt Presto unit that she got in '65, and that was long before any of us left the nest - the late '60s. Never once have I ever had an accident with one, nor have I even come close. I've had my own, off and on, since the early '70s to present. Not once has one ever malfunctioned on me at all.