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Interchangeable auxiliary keyboard

  • US 4,158,130 A
  • Filed: 05/09/1977
  • Issued: 06/12/1979
  • Est. Priority Date: 05/09/1977
  • Status: Expired due to Term
First Claim
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1. In combination with a keyboard having key members therein, an auxiliary keyboard assembly adapted for positioning on the keyboard comprising:

  • (a) a cover member having defined portions for engaging and locating the cover member on the keyboard, said cover member having a plurality of first apertures each positioned over one of the key members;

    (b) an indicia bearing member positioned on said cover member, said indicia member having a portion covering certain of said first apertures and further including a plurality of second apertures, each of said second apertures being in alignment with one of the other of said first apertures in said cover member;

    (c) and a removable key actuating means slidably located in each of the aligned first and second apertures and extending through said aligned apertures to engage a corresponding key member for operating said key member upon actuation of said key actuating means.

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