Combined automatic and manual hydraulic control for motor grader blade
US4019585A · kind A · utility
6Cited by
6References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 17, 1976 |
| Grant date | Apr 26, 1977 |
| Priority date | — |
| Expiry date | Mar 17, 1996 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F3/844
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
There is disclosed a hydraulic control system including body automatic and manual control for controlling the position of a grader blade for a motor grader. The hydraulic system is supplied fluid from a single pump and is provided with means to isolate the fluid supply from the automatic portion of the system when the manual portion of the system is activated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.