Retractable snap domes

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9666391
SERIAL NO

14520101

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Abstract

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A retractable snap dome in a keyboard, serving as a force resistor for a key in a conventional manner, includes an additional collapsed state wherein the key can be retracted by an electromechanical polymer (EMP) actuator to a persistent down position. In one embodiment, the EMP actuator is a bimorph EMP actuator that can be actuated to bring the key from down position to up position, ready for conventional keyboard operation, and vice versa. Such operations allow the keyboard to have a desirable decreased thickness relative to conventional keyboards. Thus, a keyboard of the present invention finds application in ultra-slim electronic devices. When provided in a notebook computer wherein the keyboard is folded against a video or graphic display, the keyboard keys may be placed in the retracted down position, thereby preventing the keys from pressing against the video or graphical display with a force that may damage the display.

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Patent Owner(s)

Patent OwnerAddress
KEMET ELECTRONICS CORPORATIONONE EAST BROWARD BLVD 5TH FLOOR FORT LAUDERDALE FL 33301

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Boyer, Madeline Philadelphia, US 1 0
Ducharme, Richard Alexandria, US 13 131
Foster, Edward Burnham, US 2 23
Levatich, Mark State College, US 9 44
Pathak, Raj Mountain Top, US 1 0
Thaler, Brian State College, US 2 1
Zellers, Brian C Bellefonte, US 9 333

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