I've been to many Cichowicz master classes, which I have enjoyed immensely.  Truly a master teacher.

I THINK  what is meant by "air pattern" is a technique he uses, whereby a student blows air into the room while imagining whatever lick is being addressed, like the opening to Pictures, for instance. What happens is that one delivers the breath evenly and smoothly. The idea is, do THAT when you put the horn back on your face. If there is anticipation of difficulty in any way, you'll "goose" the breath at that point. Doing the "air pattern" helps one identify such spots and get rid of them.

KS.