Typewriting machines – Key-board or key lever-actuating mechanism – Key-cap or key-stem structure
Patent
1996-12-10
1999-10-26
Burr, Edgar S.
Typewriting machines
Key-board or key lever-actuating mechanism
Key-cap or key-stem structure
400490, 361680, B41J 514, B41J 516
Patent
active
059716371
ABSTRACT:
A notebook computer (100) or other electronic device has a keyboard (106) using keys (40, 80) which can assume an active state for typing while a spring (64, 84) is pressed against a guide mechanism (44). By disengaging the spring (64, 84) from the guide mechanism, the keys (40, 80) assume a storage state at a lower height.
REFERENCES:
patent: 5268545 (1993-12-01), Bruner
patent: 5594617 (1997-01-01), Foster et al.
patent: 5602715 (1997-02-01), Lempicki et al.
patent: 5635928 (1997-06-01), Takagi et al.
IBM Technical Disclosure Bulletin, vol. 39, No. 2, Thin Keyboard Structure for Notebook Personal Computer, Feb. 1996.
Fischer Craig A.
Malhi Satwinder
Quinney Bruce D.
Burr Edgar S.
Colilla Daniel J.
Donaldson Richard L.
Kesterson James C.
Neerings Ronald O.
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