Inflatable keyboard

Details Inflatable keyboard Inflatable keyboard

1993-07-29

1995-10-17

Peng, John K.

Coded data generation or conversion

Bodily actuated code generator

Including keyboard or keypad

400481, 4004911, H03K 1794

Patent

active

054594618

ABSTRACT:
The present invention includes a flexible, pressurizable keyboard made of resilient layers of plastic material, with molded keys which are deformable when pressed so as to send a signal to an electrical device. The keys are arranged with a flexible electrical circuit thereattached, which when depressed, establish a proper complete circuit.

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patent: 4017848 (1977-04-01), Tannas, Jr.
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patent: 4795888 (1989-01-01), MacFarlane
patent: 4939514 (1990-07-01), Miyazaki
patent: 5141343 (1992-08-01), Roylance et al.
patent: 5142109 (1992-08-01), O'Meara, Jr.
patent: 5163765 (1992-11-01), Levy
patent: 5212473 (1993-05-01), Louis
patent: 5220521 (1993-06-01), Kikinis
patent: 5305181 (1994-04-01), Schultz
IBM Technical Disclosure Bulletin vol. 13, No. 3 Aug. 1970.

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