Wing plow assembly
US6581307B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2002 |
| Grant date | Jun 24, 2003 |
| Priority date | — |
| Expiry date | Jul 29, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01H5/067
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A wing plow assembly includes a base member for mounting to a plowing vehicle (or to structures connected to a plowing vehicle, such as on a plow frame for a front moldboard). Upper and lower height adjustment arms each have a base end pivotally anchored to the base member, and an opposing plow end pivotally linked to a plow positioning leg. The base member, height adjustment arms, and plow positioning leg form a parallelogram linkage wherein the plow positioning leg may vertically swing on the height adjustment arms about the base member. A wing plow having a length extending between a inner end and a outer end has its inner end affixed to the plow positioning leg so that the wing plow may also vertically swing about the base member, thereby allowing the wing plow to be raised and lowered with respect to the base member (and thus with respect to the plowing vehicle). Additionally, the wing plow inner end is preferably affixed to the plow positioning leg so that it may swing horizontally thereon, thereby allowing the wing plow outer end to be folded toward or away from the plowing vehicle. The wing plow inner end is affixed to the plow positioning leg (or associated structure), and…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.