Vibratory cable plow assembly
US4164982A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 27, 1978 |
| Grant date | Aug 21, 1979 |
| Priority date | — |
| Expiry date | Feb 27, 1998 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F5/103
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The disclosed cable plow assembly is adapted to reduce the power requirements of cable and line laying plows. The plow blade is suspended on the rear of a resilient frame assembly having two pair of vertically spaced links. Each link is pivotally supported on forward and rear frame members by resilient torsional bushings. The links of each pair preferably converge toward the direction of movement of the plow or the supporting vehicle at an angle of about fifteen to twenty degrees or about three to four horizontal units to one vertical. This arrangement generates a unique forward elliptical cleaving action in the plow blade, reducing the force required to cut the earth and pull the blade through the ground. In the most preferred embodiment, the forward ends of the lower links of each pair are adjustable vertically to adjust the angle between the links and thereby adjust the elliptical motion of the plow blade to accommodate various soil conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.