Patents Represented by Attorney John P. McClellan, Sr.

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  • Filament wound perforate plate system
    Patent number: 4187598
    Abstract: A filament-bearing plate or disk system for cutting grass and the like in which the filament is wound upon later-closed serrations in the disk periphery rather than passed through a succession of holes in the disk periphery; embodiments of the invention have respectively resilient, malleably deformable, and rotationally positionable aperture closing, and a ring closure.
    Type: Grant
    Filed: July 6, 1977
    Date of Patent: February 12, 1980
    Inventor: Charles B. Pittinger, Jr.