Ride control system for construction equipment
US6634653B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 17, 2001 |
| Grant date | Oct 21, 2003 |
| Priority date | — |
| Expiry date | Aug 21, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2500/206
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A ride control system comprising a member for substantially equalizing pressure and ride valve having three positions, namely, a first inactive position, a second active position and an intermediate equalizing position. The substantial pressure equalizing member equalizing the pressure within the head side of at least one boom cylinder with an accumulator. The inactive position corresponding to one in which the ride valve assembly maintains isolation between the accumulator and at least one boom cylinder. The active position corresponding to one in which the ride valve assembly places the accumulator and at least one boom cylinder in communication with each other. The intermediate position corresponding to one in which the ride valve assembly maintains isolation between the accumulator and at least one boom cylinder and facilitates the activation of the substantial equalizing means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.