Patents by Inventor Russell McCulloch

Russell McCulloch 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: 5906446
    Abstract: A writing instrument is disclosed having a barrel defining an internal passage including an ink reservoir. A venting mechanism is positioned at least partially within the internal passage of the barrel adjacent an anterior end portion thereof. The venting mechanism includes an elongated body defining an axial bore therethrough in communication with the ink reservoir, and a plurality of spaced apart fins peripherally surrounding the elongated body and defining a plurality of annular channels between the fins. Each of the fins defines a groove thereon to interconnect the annular channels. The writing instrument further includes a point support member supporting a writing point and positioned adjacent an anterior end portion of the venting mechanism and defining an axial bore aligned with the axial bore of the venting mechanism.
    Type: Grant
    Filed: October 22, 1996
    Date of Patent: May 25, 1999
    Assignee: BIC Corporation
    Inventors: Russell McCulloch, Frank Hart, Ronald Rukan, Barry W. Chadwick