A haptic computer output device comprises a data glove 10 the finger and thumb extension 10A and 10B of which have spaced ring formations 13 and 14. Each ring formation 13 and 13 is formed with an inwardly-opening blind bore 21 spanned in gas-tight manner by a membrane 23 and conduits 20 within the ring...http://www.google.de/patents/US5945978?utm_source=gb-gplus-sharePatent US5945978 - Haptic computer output device
