Patents Assigned to The Lewis Berkman Company
  • Plastic moldboards for snowplows and the like
    Patent number: 5088215
    Abstract: A plow is constructed of a curved high density polyethylene moldboard and frame assembly. The moldboard can be constructed with a mounting collar that slides over and grips the frame or with the frame molded into and encapsulated by the polyethylene. A scraper blade is attached to the bottom of the frame for increasing the moldboard's ridigity and/or securing the moldboard to the frame.
    Type: Grant
    Filed: December 3, 1990
    Date of Patent: February 18, 1992
    Assignee: The Lewis Berkman Company
    Inventor: James C. Ciula