Hydraulic circuit for shaking a bucket on a vehicle
US5235809A · kind A · utility
30Cited by
8References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 9, 1991 |
| Grant date | Aug 17, 1993 |
| Priority date | — |
| Expiry date | Sep 9, 2011 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/2228
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hydraulic system for a vehicle that includes an implement such as a bucket that is operated by a hydraulic actuator and a directional valve which controls flow from a load sensing variable displacement pump. A hydraulic bucket shake circuit is provided which is selectively operable to force the pump to a maximum displacement condition thereby providing standby pressure and flow to the directional valve so that the directional valve can be operated rapidly in order to shake the bucket and dislodge mud, clay and debris from the bucket or to allow penetration into frozen ground.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.