Keyswitch assembly and keyboard

US8970331B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8970331-B2
Application numberUS-201213489174-A
CountryUS
Kind codeB2
Filing dateJun 5, 2012
Priority dateJun 9, 2011
Publication dateMar 3, 2015
Grant dateMar 3, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A keyswitch assembly includes a movable keycap having a space provided in a bottom of the keycap; a metal support plate having an opening, the metal including a cantilever bridge; a switch located under the opening of the metal support plate; a magnet disposed within the space of the keycap; wherein as the keycap is undepressed, the keycap is in an initial state and the keyswitch assembly is OFF, and the magnet draws in the cantilever bridge, and as the keycap is depressed downward, the magnet is forced to depart from the cantilever bridge and actuates the switch making the keyswitch assembly to turn ON. As the forced is released, the magnetic force between the cantilever bridge and the magnet forces the keycap to return its initial state.

First claim

Opening claim text (preview).

What is claimed is: 1. A keyswitch assembly comprising: a movable keycap having a bottom extending to form a hook leg, the hook leg including a leg plane; a metal support plate and an integral metal cantilever bridge extending upwardly from the metal support plate; a switch located beneath the keycap; a magnet disposed over the leg plane; wherein, as the keycap is undepressed, the keycap is in an initial state and the keyswitch assembly is in OFF state, and the magnet attr…

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Frequently asked questions

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What does patent US8970331B2 cover?
A keyswitch assembly includes a movable keycap having a space provided in a bottom of the keycap; a metal support plate having an opening, the metal including a cantilever bridge; a switch located under the opening of the metal support plate; a magnet disposed within the space of the keycap; wherein as the keycap is undepressed, the keycap is in an initial state and the keyswitch assembly is OF…
Who is the assignee on this patent?
Chang Chao Lung, Chen Jihuang, Hsu Chien-Shih, and 1 more
What technology area does this patent fall under?
Primary CPC classification H01H13/702. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Mar 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).