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Ergonomic laptop computer and ergonomic keyboard

  • US 5,644,338 A
  • Filed: 03/25/1996
  • Issued: 07/01/1997
  • Est. Priority Date: 05/26/1993
  • Status: Expired due to Term
First Claim
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1. A stand alone keyboard where the keys are split and separable so a first plurality of alpha characters can be entered with a left hand separated from a second plurality of alpha characters entered with a right hand, said keyboard comprising in combination:

  • a left hand set of alpha keys for entering said first plurality of alpha characters, said left hand set being housed in a left housing;

    a right hand set of alpha keys for entering said second plurality of alpha characters, said right hand set being housed in a right housing;

    a flat planar surface forming a top surface of a structure separating said left hand set of alpha keys and said right hand set of alpha keys, said structure spanning substantially from front to rear of said keyboard;

    said left and right housings forming left and right keyboards, respectively;

    a pivot disposed on left and right sides of said structure separating said left hand and said right hand set of alpha keys, said pivot connecting said left and right housings to maintain alignment between said left and right housings and allowing said left and right housing to be positioned at angles below or above an horizontal plane formed by said planar surface; and

    a detent mechanism which interacts with said structure and at least one of said left and right housings for restraining movement of said at least one of said left and right housings, said detent mechanism at least restraining movement when said left and right sets of alpha keys are in said angles below or above said horizontal plane.

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