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KEYBOARD ACTUATOR

  • US 3,805,939 A
  • Filed: 12/02/1971
  • Issued: 04/23/1974
  • Est. Priority Date: 12/02/1971
  • Status: Expired due to Term
First Claim
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1. A keyboard actuating device for changing a keyboard layout comprising a unitary base member having first and second sides, a first plurality of fluid control means carried by said base member on said first side thereof for manual operation, a second plurality of fluid control means carried by said base member on said second side thereof for operating the keys of a keyboard, said base member, first fluid control means and second fluid control means defining an assembly, and fluid containing passages in said assembly communicating between said first and second fluid control means, said first fluid control means having a normal position extended with respect to said base member, said second fluid control means having a normal position retracted with respet to said base member, each of said first fluid control means being operable to a retracted position with respect to said base member for extending an associated one of said second fluid control means through one of said passages.

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