Typewriting machines – Key-board or key lever-actuating mechanism
Reexamination Certificate
1999-12-28
2001-01-30
Hilten, John S. (Department: 2854)
Typewriting machines
Key-board or key lever-actuating mechanism
C400S477000
Reexamination Certificate
active
06179496
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates to an improved keyboard structure, particularly to a keyboard that is provided with an additional turnable functional pushbutton for easy operation.
A computer keyboard is one of the indispensable peripheral devices for input of data or graphics, and for simplification, some related makers have designed a mouse and a plurality of functional keys on the computer keyboard (usually 24 keys shown in FIG.
1
).
This simplified design does provide an easy operation, for example, one can press a single functional key to link the web, then another to search data desired instead of typing many keys, however, the increment of functional keys on the other hand enlarges the size of the computer keyboard that requires more assembling labor and increases production cost accordingly.
SUMMARY OF THE INVENTION
In view of abovesaid imperfection, the primary object of this invention is to provide at least a turnable functional pushbutton for easy operation.
Another object of this invention is to gather a plurality of functional keys on a turnable functional pushbutton in order to lessen the area and volume of the computer keyboard for cost reduction.
A further object of this invention is to make it possible for printing predetermined functional items of a turnable functional pushbutton directly or attaching an adhesive label of the functional items or inserting a plurality of indication paper sheets in preset vision windows on a top cover of a computer keyboard.
For achieving abovesaid goals, the keyboard having the turnable functional pushbutton comprises a base, a pan body, and a top cover to enable a user to turn and click the functional pushbutton to function as desired in an easy operation.
REFERENCES:
patent: 4846597 (1989-07-01), Bryant
patent: 5408621 (1995-04-01), Ben-Arie
patent: 5416498 (1995-05-01), Grant
patent: 5438331 (1995-08-01), Gilligan et al.
patent: 5627531 (1997-05-01), Posse et al.
patent: 5701123 (1997-12-01), Samulewicz
patent: 5957595 (1999-09-01), Chen
Bacon & Thomas
Hilten John S.
Nguyen Anthony H.
Shin Jiuh Corp.
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