Patents by Inventor Ronald F. Zitko

Ronald F. Zitko 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).

  • Louver linkage seal
    Patent number: 4043258
    Abstract: A plurality of linkage seals are provided in an air distribution vent having a plurality of movable louvers for directing an air stream. A common linkage connects the louvers together for simultaneous adjustment. The linkage seals prevent foreign matter inclusion from adversely effecting the smooth operation of the louvered linkage.
    Type: Grant
    Filed: August 19, 1976
    Date of Patent: August 23, 1977
    Assignee: International Harvester Company
    Inventors: Ronald F. Zitko, James R. Adams