Keyboard having plurality of keys therein, each key establishing

Details Keyboard having plurality of keys therein, each key establishing Keyboard having plurality of keys therein, each key establishing

1997-03-10

2000-08-15

Friedhofer, Michael A.

Electricity: circuit makers and breakers

Multiple circuit control

Combined pivoted and reciprocating contact

200 5A, H01H 1370

Patent

active

061039799

ABSTRACT:
A keyboard includes a plurality of keys, wherein each key has an elongated shape elongated in a first direction and selectively establishes two different electrical contacts as a result of being pressed appropriately. The plurality of keys are aligned along a second direction different from the first direction. A length in the first direction of each key is longer than a width in the second direction of the key and shorter than twice the width and carries two different key letters present on a front surface thereof at respective ends of the key. Each key establishes one electric contact if a first end of the key is pressed and establishes another electric contact if a second end of the key is pressed. The front surface of each key is parallelogram-shaped and the plurality of keys are arranged so that the key letters present on the keys are arranged in a standard arrangement. The plurality of keys are arranged so that one side of two long parallel sides of a first key face one side of two long parallel sides of a second key, a first side of two short parallel sides of the first key is aligned with a first side of two short parallel sides of the second key, and a second side of the two short parallel sides of the first key is aligned with a second side of the two short parallel sides of the second key.

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