Patents by Inventor William C. McCall

William C. McCall has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4378553
    Abstract: An electromechanical interactive terminal system is disclosed, utilizing a split keyboard to accommodate convenient use, even by disabled or infirm persons. The elements of a conventional typewriter (or console) keyboard are provided in two separate and distinct keyboard units, one of which includes the keys normally activated by the right hand while the other has the keys conventionally assigned for use by the left hand. Control and coding keys are similarly assigned. The two separate keyboard units can be used in various positions as by being affixed to a support member so as to be held in spaced-apart relationship, contiguous to the hands of an operator with his arms apart and supported at rest. The keyboard units each incorporate electrical apparatus for providing electrical signals representative of data symbols associated with the keys. Additionally, certain keys are coded to provide control signals used in association with display means, a data processor, and a printer.
    Type: Grant
    Filed: March 13, 1981
    Date of Patent: March 29, 1983
    Inventor: William C. McCall