Low configuration keyboard

Details Low configuration keyboard Low configuration keyboard

1995-08-14

1996-06-11

Swarthout, Brent A.

Coded data generation or conversion

Bodily actuated code generator

Including keyboard or keypad

341 22, 200517, 200512, 200513, 200 5A, H03K 1794

Patent

active

055259790

ABSTRACT:
A low-profile keyboard (5) each switch (3) having a dished keybutton (3) held upward by a rubber dome (49) and having ribs (55) which depress extension (43 and 31) which carry electrical traces (45 and 33) to activate the switch. The assembly is mounted on post (15). A lower recess (21) permits excess travel to a quiet stop. The rubber sheet (47) provides spill resistance.

REFERENCES:
patent: 3900712 (1980-11-01), Fukao
patent: 4302647 (1981-11-01), Kandler et al.
patent: 4468542 (1984-09-01), Shen
patent: 5115106 (1992-05-01), Welland et al.
patent: 5298706 (1994-03-01), English et al.
patent: 5324902 (1994-06-01), Pounds
patent: 5386091 (1995-01-01), Clancy
patent: 5438177 (1995-08-01), Fagan

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