Float control electrical circuit for a blade
US4024796A · kind A · utility
18Cited by
7References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 24, 1975 |
| Grant date | May 24, 1977 |
| Priority date | — |
| Expiry date | Sep 24, 1995 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F3/844
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In a vehicle, such as a motor grader, having a work tool operated by at least one hydraulic cylinder, the position of the work tool being controlled by a main control valve, and the work tool being placed in a float condition by actuation of a second control valve, the improvement wherein the operator may override the float condition by actuation of the main control valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.