Fork lift
US4921075A · kind A · utility
27Cited by
16References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 1989 |
| Grant date | May 1, 1990 |
| Priority date | — |
| Expiry date | Feb 21, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66F9/082
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A fork lift truck includes a generally U-shaped frame having a pair of hydraulic driven wheels on the front end and a caster on the back end. A mast projects upwardly from the frame and is designed to move between the forward end of the vehicle and a retracted position behind the front wheels. A carriage is mounted on the forward end of the mast and reciprocates upwardly and downwardly on the mast in response to chains connected to a hydraulically driven piston which is mounted on the mast.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.