Depth sensing skid assembly
US4723608A · kind A · utility
12Cited by
8References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1986 |
| Grant date | Feb 9, 1988 |
| Priority date | — |
| Expiry date | Sep 30, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01B63/22
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A depth sensing skid arrangement for an implement including a spring steel depth skid connected to a shank which in turn is pivotally connected to a shank support bracket including a spring trip arrangement which permits backing of the implement without damage to the skid or shank. The shank support bracket in turn is connected to a transverse beam operably connected to valve control structure for operating a hydraulic cylinder to maintain a preselected depth of penetration of earth-working tools mounted on the frame. To provide an averaging effect, two resilient depth skids are transversely spaced on the beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.