Implement positioning hydraulic control system
US3997007A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1975 |
| Grant date | Dec 14, 1976 |
| Priority date | — |
| Expiry date | Jul 14, 1995 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/2004
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hydraulic control system is disclosed for selectively directing fluid to a pair of reciprocable jacks connectably disposed intermediate a frame and an implement such as a bulldozer blade for tilting and tipping the blade relative to the frame. The control system includes a fluid supply source, a flow divider valve which is in fluid communication with the supply source for providing equal flow to a pair of outlet paths, a first control valve arrangement for selectively communicating fluid from one of the outlet paths to either end of one of the jacks, and a second control valve arrangement for selectively communicating fluid from the other one of the outlet paths to either end of the other one of the jacks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.