Ground attitude control means
US6234407A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 1999 |
| Grant date | May 22, 2001 |
| Priority date | — |
| Expiry date | Aug 18, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2300/083
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A ground attitude control apparatus is provided for maintaining a constant boom attitude when traveling over uneven ground. A boom for supporting crop-spraying equipment is pivotally mounted on and extending either side of a carrier for movement about a substantially horizontal first pivot axis. A levelling member is pivotally mounted on the boom for movement about a substantially horizontal second pivot axis. At least one damper is connected between the levelling member and the boom and exerts a damping effort on the boom. A linkage is pivotally connected to both the levelling member and the carrier. The linkage is disposed to control the damping effort to cause the boom to rotate at a desired angular velocity in response to rotation of the carrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.