Patents by Inventor John F. Gander

John F. Gander 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: 4790071
    Abstract: A flexible line trimmer for cutting vegetation can be converted to a blade cutting device. The trimmer has a motor driven rotatable head with a cavity defined by a wall of the head. The cavity receives a spool wrapped with line. The line has a free end extending through an aperture in the wall of the head. Drive lugs located in the cavity couple the spool to the drive head for rotation. The blade carrier replaces the spool and line. The blade carrier has a central portion that locates within the cavity while the spool is removed. The central portion has at least one drive member that is positioned to engage the drive lugs to rotate the blade carrier with the head. A plurality of blades are mounted to the periphery of the carrier. The carrier is fastened to the head.
    Type: Grant
    Filed: January 2, 1987
    Date of Patent: December 13, 1988
    Assignee: Trimrite, Inc.
    Inventors: Michael A. Helmig, John F. Gander
  • Patent number: 4756148
    Abstract: A flexible nonmetallic line trimmer for cutting vegetation has a wheel support for edging operations. The trimmer has a safety guard that extends around the rearward portion of a motor housing. A sliding bracket is mounted to the safety guard. A wheel is mounted on the forward end of the sliding bracket. The bracket will slide between a retracted position with the wheel to one side of the housing to an extended position with the wheel in front of the housing to support the cutter.
    Type: Grant
    Filed: August 1, 1986
    Date of Patent: July 12, 1988
    Assignee: Nylon Line Cutters (Pty.) Ltd.
    Inventors: John F. Gander, Otto D. Dunnebacke, Michael A. Helmig