Control valve assembly for load carrying vehicles
US9120492B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 20, 2012 |
| Grant date | Sep 1, 2015 |
| Priority date | — |
| Expiry date | Oct 12, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87193
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A control valve assembly for a load carrying vehicle that includes a dumping mechanism. The control valve assembly including a housing, a valve, and a biasing device. The valve is movable between a dumping position, and a closing position. The biasing device including a biasing device housing and a piston moveable between a first piston position and a second piston position relative to the biasing device housing. A biasing element is arranged between the biasing device housing and the piston to bias the piston toward the first piston position. The biasing device directly contacts the valve when in the first piston position to inhibit movement of the valve, and the biasing element is calibrated to allow the piston to move to the second piston position when air provided by an air compressor reaches a predetermined pressure, thereby not inhibiting movement of the valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.