Snow plow guards comprising pliant polymer
OwnerKent L. Winterinventor
Life of this patent
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Abstract
Guards, usually used in pairs as replaceable attachments to snow plow blade, are shown. At least one of the pair consists essentially of a panel portion with an integral curb feeler extending therefrom and supported thereby that sweeps around a blade end and reaches rearwardly; the curb feeler extension on its mate is optional. The guards comprise deformable polymer. Advantageously the polymer is laminated with a lamina of a hard metal such as steel that is fitted with an especially abrasion-resistant bottom edge. An assembly of the laminae typically is held together with bolts to the plow, and the laminae can be adhesively bonded together also, if desired.
Claims12
A guard adapted for attachment to the front of an outer side end of the expendable blade disposed across the moldboard of a snow plow, the guard being attachable for extending the service life of the blade and including:
- a panel portion that conforms generally to the front part of said outer end of the blade;
- and
- a curb feeler portion comprising a flexible polymer,
- the curb feeler portion being integral with at least part of the panel portion and supported thereby to project to the side of and sweep rearwardly around said outer end of the blade.
A guard adapted for attachment to the front of an outer end of the expendable blade disposed across the moldboard of a snow plow, the guard comprising:
- a panel portion that conforms generally to the front part of said outer end of the blade,
- the panel portion being laminated, the laminae including one lamina comprising a hard metal and one lamina comprising flexible polymer,
- there being a reconstitutable abrasion-resistant lower margin at the bottom of a metal lamina of the panel portion;
- and
- a curb feeler portion that is formed to project to the side of and sweep rearwardly around of said outer end of the blade,
- the curb feeler being an integral extension of at least one of said laminae and supported thereby.
A guard adapted for attachment to the front of an outer end of the expendable blade disposed across the moldboard of a snow plow, the guard being attachable for extending the service life of the blade and consisting essentially of:
- a panel portion that conforms generally to the front part of said outer end of the blade;
- and
- a curb feeler portion,
- both said portions comprising a pair of laminae including one lamina of steel and one lamina of flexible polymer, the curb feeler portion being an integral extension of the panel portion and supported thereby, the lower margin of the steel lamina having on it a deposit of abrasion-resistant weld metal.
Dependencies are inferred from the claim text.