Bison was...
Basically a backwards Kirby...A Kirby employee thought he could make a better Kirby, so he changed things enough to get around the Kirby patents, It was probably the best cleaning upright ever devised, but its reliabilitywas poor,, Clay Floyd was a dealer for Bison for a while, he said the owner of the company locked the dealers in a room and preached a hell fire Baptist sermon to them, and then declared that "I had better never hear of MY machines being sold to black people or in trailer parks!", of course,such as this certainly helped his downfall!Clay said everyone sat there with their mouths open, the main breaking point according to Clay was the drive assembly on the rug head, he said the first green ones actually broke down on demo occasionally, but when it was working, it would clean rings around anything else.The motor is a General Electric, and if you listen to it, it sounds like a GE upright.