Keyboard with an octagonal guide for a key

Details Keyboard with an octagonal guide for a key Keyboard with an octagonal guide for a key

2010-01-05

2011-11-15

Leon, Edwin A. (Department: 2833)

Electricity: circuit makers and breakers

Electric switch details

Actuators

Reexamination Certificate

active

08058579

ABSTRACT:
A key module for a keyboard includes a key having a guiding plunger, and a key housing having a set of walls with an opening formed by the set of walls. The opening formed by the set of walls is configured to receive the guiding plunger. The set of walls includes at least eight guiding surfaces configured to contact the guiding plunger. The guiding plunger is configured to contact the eight guiding surfaces as the guiding plunger moves up and down in the opening.

REFERENCES:
patent: 4939324 (1990-07-01), English et al.
patent: 5670759 (1997-09-01), Hsu
patent: 6121564 (2000-09-01), Huang
patent: 6156986 (2000-12-01), Tsai
patent: 7687732 (2010-03-01), Tabata

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