05088215 is referenced by 44 patents and cites 15 patents.

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.

Title
Plastic moldboards for snowplows and the like
Application Number
7/620564
Publication Number
5088215
Application Date
December 3, 1990
Publication Date
February 18, 1992
Inventor
James C Ciula
Mentor
OH, US
Agent
Body Vickers & Daniels
Assignee
The Lewis Berkman Company
OH, US
IPC
E01H 5/06
View Original Source