He decided that it had pressure locks beat all hollow.

Jim came back with one; the doctor went through the pressure lock again.

The pressure lock there was higher and larger than that at the school; the entire party went inside.

She didn't slow and I had to grab door handle to get into pressure lock with her.

It seemed to take forever for the pressure lock to let him through.

The pressure lock at the school's front door could hold about twenty people at a time.

As the pressure lock released, her strength proved too much for the structures.

Cold air blasted against his face, driven constantly so a pressure lock would not be necessary.

Jim darted for the pressure lock, was stopped by the guard.

Surely this hadn't been made before the advent of pressure locks.