Patents Represented by Attorney, Agent or Law Firm Needle & Rosenberg, PCC.
  • Grinding machine and method of grinding grass mower rotary blades
    Patent number: 6758730
    Abstract: A portable grinding machine for grinding or restoring a relief angle (34) onto the rotary blades of a grass mowing machine in a transverse reciprocal movement the grinding machine comprising a blade support means for automatically maintaining the rotary blades (2, 102) of said mowing machine in contact with the grinding wheel (5, 105) during the reciprocal movement of the grinding machine along a blade.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: July 6, 2004
    Inventor: Stephen Geoffrey Bernhard