Working vehicle
US4315636A · kind A · utility
3Cited by
3References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 11, 1979 |
| Grant date | Feb 16, 1982 |
| Priority date | — |
| Expiry date | Oct 11, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2800/22
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A working vehicle having a pair of opposite wheels movable up and down with each other in opposed relation under hydraulic pressure, and brakes for braking the vehicle during running and also for parking the vehicle. The circuit for the hydraulic pressure is provided with a stop valve which is coupled to the system for operating the brakes by a mechanism for holding the stop valve opened while the vehicle is not braked and also when the vehicle is braked for a speed reduction during running and for holding the stop valve closed while the vehicle is braked for parking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.