Keypad dialog terminal

Details Keypad dialog terminal Keypad dialog terminal

1995-04-18

1997-08-12

Crosland, Donnie L.

Computer graphics processing and selective visual display system

Display peripheral interface input device

Including keyboard

341 23, 341 22, 341 34, 36470901, 3647091, 3647081, G06F 300, G09G 500

Patent

active

056570520

ABSTRACT:
A keypad dialog terminal in particular for dialog with a programmable automatic controller, comprising a casing (1) carrying a dialog screen (12) and a set of contacts (32) associated with a keypad (22), characterised in that the casing (1) comprises a casing body (11) carrying the fixed contacts and a removable dialog module (2) comprising a frame (21) closed by a visible top membrane (22) which forms various projecting keys and carries the mobile contacts (26), this frame (21) having removable locking apparatus (24, 25) adapted to cooperate with conjugate locking apparatus (14, 15) on the lateral sides of the casing body (11).

REFERENCES:
patent: 3978328 (1976-08-01), Fabry et al.
patent: 4092527 (1978-05-01), Luecke
patent: 4279021 (1981-07-01), See et al.
patent: 4890832 (1990-01-01), Komaki
patent: 5373458 (1994-12-01), Bishay et al.

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