What are these pans used for?
Surely it is some sort of gimmicky bacon pan. You lay the bacon over the hump and clamp it down like you would with a bacon press, then the trough-like sides catch the grease.

I could see it maybe being used to make naan bread. Once it's puffed up you clamp the top down and flip upside down to blacken the bubbles like would happen in a tandoor. Seems like a little bit of a stretch though.