Patents by Inventor Edward Thomas Robie

Edward Thomas Robie 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).

  • Electrical energizable apparatus and adapter connector for use therewith
    Patent number: 4053788
    Abstract: An electrophotographic copier apparatus having a plurality of 115 VAC single phase components which are connected in a balanced-load configuration to the two 115 VAC in-phase circuits of a 230 VAC power input plug. This plug is usable with a 230 VAC wall socket. When the copier is to be used in a location having only a 115 VAC wall socket, a passive electrical adapter connector is interposed between the copier's 230 VAC input plug and the 115 VAC wall socket. The adapter presents two in-phase 115 VAC circuits to the 230 VAC input plug. This adapter connector is stored within the copier's housing, such that the copier is readily usable with either an industry-standard 230 VAC or an industry-standard 115 VAC environment.
    Type: Grant
    Filed: August 11, 1976
    Date of Patent: October 11, 1977
    Assignee: International Business Machines Corporation
    Inventor: Edward Thomas Robie