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US 4,275,514 AGranted
Snowplow extensions
OwnerNicholas J. Maurainventor
Life of this patent
Estimating the term…
Abstract
An attachment for snowplows comprising two sheets of steel, fiberglass, or plastic type material that are curved in contour with the snowplow moldboard and attached thereto in such a manner as to make the snowplow adjustable to various widths.
Claims3
A snowplow and snowplow extensions combination comprising:
- spring-loaded curved moldboard having a bottom edge and a top edge and a replacement cutter located along said bottom edge with a molded in track extending along the length of said replacement cutter, a guiding track attached to said top edge and having spaced adjustment holes;
- a pair of extension wings having a top guide slidable engaging said guiding track, a bottom guide slidable engaging said molded in track, said extension wings being curved in contour with said curved moldboard;
- said top guide having a handle attached for ease in sliding and upright plow guides mounted to the outside corners of said top guide, said top guide having spaced adjustment holes therein, a manual operable position adjustment holding pin for extending through said adjustment holes of said guiding track and top guide when aligned to thereby manually fasten and hold said extension wings in position.
Dependencies are inferred from the claim text.