thought screen n.

He invented a thought screen that, when worn, effectually shields the wearer from intrusion into his private thoughts.

For the past few minutes I have had my thought screen switched off so that they could read my mind and learn of the plot against them here. I concealed only the manner of the weapon itself.

There is a blank space which I cannot penetrate, in teh seventh room of the fourth corridor. In all probability it is one of our guests, hiding now behind a thought screen.

Tregonsee should have stayed out in deep space, concealed behind a solid thought-screen.

It’s a portable thought screen. As long as you wear it, you’re safe. It hides your thoughts from the Paths.

Rhodan had plunged into deep thought and retired to his cabin. The thought-screen he put up around his mind could not be broken even by the curious Pucky.

It did Paul no good to erect a thought-screen when that young devil was around—not that the lowliest normal could have failed to read on Paul’s face what the decision had been.

Maisel could feel that maddening itch at the back of her mind, threatening to get stronger again…. ‘Even with the thought screen, that thing’s trying to dig through.’