We've never had hyperinflation in the US. We've had high inflation, but never hyperinflation. And we've had very low inflation since the 80s, including during the decade-plus period of practically-zero interest rates.

Hyperinflation is a completely different issue from inflation, and it's kind of odd for it to become the monetarist bugaboo. When the US has a massive war debt payable immediately, or a complete economic collapse that the government decides to cope with by price controls, then you'll see hyperinflation. But then, hyperinflation will be the least of your problems.