Keyboard with a protective foil

Details Keyboard with a protective foil Keyboard with a protective foil

1996-01-26

1997-07-01

Burr, Edgar S.

Typewriting machines

Key-board or key lever-actuating mechanism

Key-cap or key-stem structure

400472, 2003022, B41J 512

Patent

active

056429509

ABSTRACT:
A keyboard has a protective foil which is a formed part to have dome-shaped vaults extending upwardly from a foil floor at respective individual keys of the keyboard. The protective foil is inverted (dome interiors open downwardly) so that the keys are respectively arranged relative to the vaults (8) and replaceable caps (9) are snapped onto the vaults and keys.

REFERENCES:
patent: 4471189 (1984-09-01), Bacon et al.
patent: 4555600 (1985-11-01), Morse
patent: 4755072 (1988-07-01), Hoornweg
patent: 5183346 (1993-02-01), Tesar
patent: 5300742 (1994-04-01), Huang
patent: 5348405 (1994-09-01), Lupkas

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