Key structure

Details Key structure Key structure

2006-06-13

2006-06-13

Nguyen, Anthony H. (Department: 2854)

Typewriting machines

Key-board or key lever-actuating mechanism

Key-cap or key-stem structure

C400S400000, C400S472000

Reexamination Certificate

active

07059789

ABSTRACT:
A key structure. The key structure comprises a substrate, a key cover, a first rod and a resilient member disposed between the substrate and the key cover. The key cover has a receiving seat defining an opening and a receiving space. Particularly, the length of the opening is less than the receiving space, and the opening is offset with respect to the center of the receiving space. The first rod has a first end connecting the key cover and a second end connecting the substrate, wherein the first end has a protrusion passing through the opening into the receiving space.

REFERENCES:
patent: 5278371 (1994-01-01), Watanabe et al.
patent: 5878872 (1999-03-01), Tsai
patent: 6011227 (2000-01-01), Yoneyama
patent: 6040541 (2000-03-01), Li
patent: 6328489 (2001-12-01), Chi-Pin
patent: 6550993 (2003-04-01), Lu et al.
patent: 503412 (2002-09-01), None

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