Patents by Inventor Gerald L. Scharboneau

Gerald L. Scharboneau 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: 4561271
    Abstract: A tool for operating the bolt mechanism of a cylinder lock without the use of a key. The tool comprises a slender steel rod provided on its end with at least one hingedly pivotable knuckle member or portion constantly urged by spring bias means to a pivoted position at a right angle to the axis of the shank. The tool is inserted through the plug key slot until the jointed knuckle member or portion projects beyond the end of the key slot and is automatically extended to a 90.degree.-angle such as to operate the bolt mechanism in the same manner as the conventional lock cam.
    Type: Grant
    Filed: December 19, 1983
    Date of Patent: December 31, 1985
    Assignee: Jack Van Wallaghen
    Inventor: Gerald L. Scharboneau