Flexible inflatable multi-chamber signal generator

Details Flexible inflatable multi-chamber signal generator Flexible inflatable multi-chamber signal generator

1995-12-29

1997-06-24

Mullen, Thomas

Coded data generation or conversion

Bodily actuated code generator

Including keyboard or keypad

273374, 273458, 340323R, 400481, 4004911, H03K 1794

Patent

active

056421095

ABSTRACT:
The present invention comprises a signal generator for sending an electrical signal upon receipt of an input force, the signal generator having a first outside layer of flexible, resilient plastic with a periphery and an inner surface, a second outside layer of flexible, resilient plastic having a periphery and an inner surface, the first and second layers joined at least at their periphery to form walls defining primary chamber. The primary chamber also has at least one inside layer of flexible, resilient plastic having a periphery and a first and second surface, the inside layer also being joined at its periphery, to the walls of the primary chamber to sub-divide the primary chamber into a plurality of adjacent sub-chambers. A pressurized fluid may be disposed in each of the sub-chambers and an electrical circuit may be arranged in at least one of the sub-chambers, to effectuate the transmission of an electrical signal from the primary chamber upon receipt of an input force within the primary chamber.

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Cook et al., "Key Matrix Using a Fluid Medium", IBM Tech. Discl. Bull., vol. 13, No. 3, Aug. 1970.

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