The proof is in the poppet

摘要

Applying features from a nearly forgotten design, one company resurrected a simple but efficient valve technology that is paying processing dividends. Invention, like time, waits for no man, or drafting table for that matter. So, 12 yars ago when inspiration came, Jeff Kuhman didn't hesitate to unfurl the blueprint on the floor of a bustling Chicago Midway terminal.