Patents Assigned to Rockford Enterprises, Inc.
  • Oil filler extension
    Patent number: 4515245
    Abstract: A sheet metal oil filler extension formed of a metal tube having a stamped metal fitting on one end with a seal and a spring washer therearound for sealed attachment to an engine valve cover, and an annular sheet metal cap on the other tube end to receive a removable cover.
    Type: Grant
    Filed: August 15, 1983
    Date of Patent: May 7, 1985
    Assignee: Rockford Enterprises, Inc.
    Inventor: Dennis E. Salmon