Patents Assigned to John D. O'Brien
  • Line reel mower
    Patent number: 4653255
    Abstract: A lawnmower apparatus having a plurality of elongated lines or cables fabricated from a plastic material and the like that are arranged for movement about an axis. The lines are attached to rotatable plates or discs such that the apparatus acts as a reel-type lawnmower to cut grass in conjunction with an elongated bar. A resilient assembly maintains appropriate tensioning of the lines during operation of the lawnmower.
    Type: Grant
    Filed: July 11, 1985
    Date of Patent: March 31, 1987
    Assignee: John D. O'Brien
    Inventors: John D. O'Brien, Stephen M. Baker, Douglas G. Davidson